A packing assembly and a pipeline reactor containing the same

Abstract

The present invention provides a packing assembly and a pipeline reactor comprising the same, comprising: a first packing unit, the first packing unit having a first discharge port, so that material flows out through the first discharge port; and a second packing unit, the second packing unit is arranged on the first discharge port side of the first packing unit and has a second blocking portion and a second discharge port, the position of the second blocking portion is arranged corresponding to the first discharge port, so that the material flowing through the first discharge port is blocked by the second blocking portion, flows through the second discharge port, and flows into the next layer when several packing assemblies are stacked.

Description

Technical Field

[0001] The present application generally relates to a reactor applicable to the field of chemical and pharmaceutical machinery technology, and more specifically to a pipeline reactor, which is particularly suitable for chemical production involving high temperature and high pressure, flammable and explosive substances and whose production process requires high temperature and high pressure. Background Art

[0002] For chemical production involving high temperature and pressure, flammable and explosive substances and production processes requiring high temperature and pressure, pipeline reactors have the characteristics of large heat transfer area, high pressure resistance, simple structure, convenient processing, continuous operation, large production capacity, easy to realize automatic control, and labor saving. They also have good mass transfer effects when operating under turbulent conditions. Therefore, in strong exothermic reactions and high-pressure reactions, pipeline reactors have advantages that kettle reactors do not have. They are suitable for gas phase and homogeneous liquid phase reactions, gas-liquid phase reactions, liquid-solid and gas-liquid-solid reactions in the presence of suspended solids or catalysts.

[0003] Specifically, the pipeline reactor has the common advantages of general continuous operation equipment, that is, the concentration and temperature conditions of the reaction only change along the length of the tube, and do not change with time, so it is easy to realize automatic control. Since continuous operation does not occupy non-production time such as feeding, unloading, and cleaning, the equipment utilization rate is high. For a well-designed pipeline reactor, back mixing can be basically eliminated, and a higher conversion rate can be achieved. Pipeline reactors are particularly suitable for high-pressure reactions and reaction systems where the mixture is gas; and because the surface area per unit volume of the pipeline reactor is large, it is also suitable for strong endothermic reactions and reactions that need to be carried out at high temperatures. Most of the pipeline reactors used in production use parallel feeding operation. However, if a continuous pipeline reactor is not strengthened to increase the mixing degree of the radial two liquid phases and increase the mass transfer area between the two liquid phases, the reaction will be very slow. Therefore, if a continuous pipeline reactor is used, its mass transfer process must be strengthened. However, the more commonly used methods in reactor design are mechanical oscillation method and static mixing method.

[0004] However, for chemical reactions that require long-term stirring and contact in a kettle reactor and chemical reactions involving solids, pipeline reactors cannot achieve good mixing effects. There is a need for a reactor with better stirring effects and suitable for high-temperature and high-pressure chemical reactions of hazardous substances. Summary of the invention

[0005] One aspect of the present invention relates to a reactor. One or more embodiments of the present invention overcome one or more of the above-mentioned drawbacks.

[0006] The present invention provides a packing assembly, comprising: a first packing unit, the first packing unit having a first discharge port, so that material flows out through the first discharge port; and a second packing unit, the second packing unit is arranged on the first discharge port side of the first packing unit, and has a second blocking portion and a second discharge port, the position of the second blocking portion is arranged corresponding to the first discharge port, so that the material flowing through the first discharge port is blocked by the second blocking portion, flows through the second discharge port, and flows into the first packing unit of the next layer when several packing assemblies are stacked.

[0007] Thus, after the material flows through the first packing unit, it is blocked by the second blocking part, resulting in enhanced mixing, and then flows through the second discharge port and into the first packing unit of the next layer. Therefore, the material can be mixed when it flows through the packing assembly.

[0008] Optionally, the first discharge port and the second discharge port each independently protrude in a discharge direction, for example having a conical outlet cross-section structure.

[0009] In this way, the discharge port is protruding, which has the function of guiding the material flow to the blocking part, thereby increasing the mixing intensity; the conical outlet maximizes the material flow velocity at the outlet, forming turbulent mixing, and generating baffle mixing when reaching the blocking part.

[0010] Preferably, the first filling unit further has a first blocking portion, and the position of the second discharge port is arranged corresponding to the first blocking portion.

[0011] Thus, in the case of a multi-layer packing assembly, after the material flows through the second discharge port, when it reaches the first blocking portion of the next layer of packing assembly, turbulent mixing and deflection mixing will also occur, so that each time the material flows through the discharge port of the packing assembly, mixing will occur, thereby generating the maximum mixing intensity. In some embodiments, a deflection baffle component is provided between the first discharge port of the first packing unit and the first blocking portion, so that when the material flows from the first blocking portion to the first discharge port, the material is further deflected to increase the degree of mixing. In some embodiments, a deflection baffle component is provided between the second discharge port of the second packing unit and the second blocking portion, so that when the material flows from the second blocking portion to the second discharge port, the material is further deflected to increase the degree of mixing.

[0012] Preferably, the first discharge port is arranged in the middle of the first filler unit, and the second discharge port is arranged at the edge of the second filler unit; or, the second discharge port is arranged in the middle of the second filler unit, and the first discharge port is arranged at the edge of the first filler unit.

[0013] In this way, the first discharge port and the second discharge port are arranged as far apart as possible in the radial direction, so that when the materials are mixed in each stage of the filling assembly, the materials have the longest flow path, thereby maximizing the effect of strengthening the flow mixing.

[0014] Preferably, the first packing unit and the second packing unit are each independently formed with a Vertical The first and second supporting walls are extended, and the shapes of the first and second supporting walls match and abut against each other, so as to form a certain mixing space between the second filler unit and the first filler unit.

[0015] In this way, support walls are formed at the edges of the packing units, and the shapes of these support walls cooperate with each other, so that it is easy to form an overall longitudinally extending mixing space between the packing units, and between adjacent packing units between adjacent packing assemblies, thereby providing sufficient flow for turbulent mixing and maximizing the effect of turbulent mixing. Here, longitudinal refers to the extension direction of the reactor tube body, and also refers to the direction in which the first packing unit and the second packing unit are arranged in layers in sequence.

[0016] Preferably, both the first packing unit and the second packing unit have rounded edges.

[0017] Thus, the first packing unit and the second packing unit are suitable for a pipeline reactor. In some embodiments, the second discharge port is arranged at the edge of the second packing unit, and a plurality of notches are formed on the circular edge of the second packing unit, which cooperate with the edge of the pipeline reactor to form the second discharge port; in some embodiments, the first discharge port is arranged at the edge of the first packing unit, and a plurality of notches are formed on the circular edge of the first packing unit, which cooperate with the edge of the pipeline reactor to form the first discharge port. In some embodiments, the first discharge port and the second discharge port are independently arranged in a plurality close to each other, so that, at the same total material flow rate, the higher the Reynolds number of the material flow, the stronger the turbulence, and mixing will be formed between the various turbulent mixed flows. The second discharge port is arranged along the tube wall to increase the heat transfer efficiency and facilitate heat dissipation.)

[0018] Preferably, the first filler unit and the second filler unit are separately and / or integrally arranged with each other so as to be detachably installed in the tube body of the reactor.

[0019] Thus, the first packing unit and the second packing unit can be arranged separately and / or integrated with each other, which makes it more convenient to install them into the pipeline reactor, and the first packing unit and the second packing unit can be modularly arranged according to the length of the tube body. In particular, the integrated arrangement can avoid installation errors, such as the repeated installation of two adjacent first packing units.

[0020] Preferably, the first filler unit is a bucket-shaped structure with the first discharge port at the bottom, and the second filler unit is a bucket-shaped structure with the second discharge port at the edge. The bottom of the bucket-shaped structure of the first filler unit is inserted into the bucket-shaped structure of the second filler unit, thereby, the material flows through the bucket surface and bucket back of the first and second filler units respectively, and when the material flows through the two filler units, in addition to producing the effect of deflection and mixing, it is also continuously gathered and dispersed.

[0021] In this way, the modular structure of the first packing unit and the second packing unit is convenient for design, manufacture and installation, and can be applied to filling pipeline reactors with different structures.

[0022] The present invention also relates to a tubular reactor, comprising a tubular reactor body having a tubular reaction channel therein; and one or more packing components as described above, wherein the edges of the first packing unit and the second packing unit of the packing component cooperate with the shape of the tubular reaction channel, so that the fluid reactant is transported in the tubular reaction channel through the packing component.

[0023] Thus, the pipeline reactor according to the present invention can withstand high pressure. In comparison, conventional reactors cannot achieve such good results. In particular, the plate reactor, because its reaction channel is engraved on the plate, multiple plates are superimposed on each other and pressed with screws, in order to overcome the expansion and contraction caused by temperature changes, springs are used at both ends of the screw to compensate for the pressing force, so it is impossible to achieve a better seal to withstand higher pressure. The pipeline reactor according to the present invention can withstand large reaction pressures and high reaction temperatures, and at the same time, its mixing intensity is high and its liquid holdup is low, so the safety performance is greatly improved.

[0024] Preferably, the pipeline reactor comprises at least two stacked packing assemblies as described above, and the adjacent second packing units and the adjacent first packing units between two adjacent packing assemblies abut against each other, forming a certain mixing space between the two packing assemblies.

[0025] In this way, in the pipeline reactor, when the material passes through, a good mixing effect can be formed between all the packing components and inside the packing components, and the role of the packing can be fully exerted.

[0026] The technical solution of the present invention adopts a packing unit that is easy to mix materials in the reaction path, so that the reactants are fully mixed and contacted in the reaction pipe, the mass transfer coefficient is greatly increased, the reaction pipe becomes the main reaction area, and the reactor is omitted; since the reaction pipe has a small diameter and adopts a pipeline reactor, it can withstand very high pressure; the liquid holding capacity of the reaction pipe is low, and the danger is relatively small when performing high-risk chemical reactions; the reactants are violently stirred when being transported in the reactor, so it is suitable for various multiphase reactions, such as gas-liquid-solid three-phase reaction, liquid-liquid reaction, gas-liquid reaction, solid-liquid reaction, etc.

[0027] Essentially, the pipeline reactor according to the present invention is a continuous flow pipeline reactor, wherein the channel is manufactured by a finishing process, and the size of the pipeline is not particularly limited, and its diameter is usually between 0.01-1 meter, for example, 2 cm to 0.9 m, 3 cm to 0.8 m, 4 cm to 0.7 m, 5 cm to 0.6 m, 6 cm to 0.5 m, 7 cm to 0.45 m, 8 cm to 0.4 m, 9 cm to 0.35 m, 0.1 m to 0.3 m, 0.15 m to 0.25 m. Since the channel size of the process fluid in the reactor is very small, its specific surface area to volume ratio is very large compared to conventional pipeline reactors, so the reactor has a high mixing efficiency (radial complete mixing is achieved in the millisecond range), a strong heat exchange capacity and a very short residence time distribution. The two major features of the "pipeline reactor" - large specific surface area and continuous operation mode, make it possible to accurately control the reaction process. Compared with traditional intermittent reaction processes, pipeline reactors have the advantages of high-speed mixing, efficient heat transfer, narrow distribution of reactant residence time, good repeatability, rapid system response and easy control, almost no amplification effect, and a small amount of online chemicals, thus achieving high safety performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings of the embodiments will be briefly introduced below. Obviously, the drawings in the following description only relate to some embodiments of the present disclosure, but are not intended to limit the present disclosure.

[0029] Figure 1 1 is a partial cross-sectional view of a pipeline reactor 100 according to the present invention, wherein the arrangement of the packing components 2 inside the pipe body 1 is shown.

[0030] Figure 2 yes Figure 1 Magnified view of portion A.

[0031] Figure 3a is a cross-sectional view of the first packing unit 21 .

[0032] Figure 3b-Figure 3c1 and 2 are a cross-sectional view and a top view of the second packing unit 22 .

[0033] Figure 4 It is the flow diagram of the reaction materials in the packing component 2.

[0034] Figure 5a-5b 2 is a diagram showing the structure of the hollow nut 32 . DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solution and advantages of the embodiments of the present disclosure clearer, the technical solution of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings of the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0036] In the present application, unless otherwise specified or different meanings can be derived from the context, each term has the meaning generally understood in the art.

[0037] The pipeline reactor according to the present invention is suitable for the following application scenarios:

[0038] A. Strong exothermic reaction: For strong exothermic reaction, conventional reactors generally adopt the method of gradual dripping. Even so, local overheating will occur at the moment of dripping, generating a certain amount of by-products. However, the pipeline reactor according to the present invention can timely conduct heat and accurately control the reaction temperature, thus eliminating local overheating and significantly improving the yield and selectivity of the reaction.

[0039] B. Reactions with unstable reactants or products: Some reactants or generated products are very unstable and will decompose and reduce the yield if they stay in the reactor for a long time. In the pipeline reactor according to the present invention, because the material flows continuously, its residence time in the reactor is very short, and its residence time can be accurately controlled, thereby effectively reducing the decomposition of reactants and products and improving the yield.

[0040] C. Rapid reaction with very strict requirements on reaction ratio: Some reactions have very strict requirements on the ratio of materials, and an excess of one of the reactants will cause side reactions (such as a reaction requiring monosubstitution will have di- and tri-substitution products). Since the pipeline reactor system according to the present invention can achieve instantaneous uniform mixing of materials, local excess can be avoided and the generation of by-products can be reduced to a minimum.

[0041] D. Dangerous chemical reactions and high-temperature and high-pressure reactions: For some chemical reactions that are easy to get out of control, once out of control, the reaction temperature will rise sharply, the reaction pressure will increase sharply, causing material rushing and even explosion. In the pipeline reactor according to the present invention: first, the reaction heat can be quickly extracted, so the reaction temperature can be effectively controlled within a safe range, reducing the risk of loss of control to a minimum; second, because it is a continuous flow reaction, even if something unexpected happens, the harm caused is negligible due to the extremely small amount of chemicals online. Therefore, from the perspective of safety, the pipeline reactor according to the present invention is very suitable for such reactions.

[0042] E. Nanomaterials and particle formation reactions or polymerization reactions requiring uniform distribution of products: Since the pipeline reactor according to the present invention can achieve uniform mixing of materials, in the reaction of forming precipitation, the time of particle formation and growth is basically the same, so the particle size obtained has the characteristics of narrow distribution. For some polymerization reactions, products with narrow distribution of polymerization degree can be obtained.

[0043] Figure 1 It is a partial cross-sectional view of a pipeline reactor 100 according to the present invention, wherein the arrangement of the packing components 2 (or packing assemblies) inside the pipe body 1 is shown, which shows that a plurality of groups of overlapping and neatly arranged packing assemblies are used in the pipeline reactor. Figure 2 yes Figure 1 An enlarged view of portion A of FIG. 1 , which shows that each packing unit includes a first packing unit and a second packing unit. Figure 3a is a cross-sectional view of the first packing unit 21 . Figure 3b-Figure 3c 1 and 2 are a cross-sectional view and a top view of the second packing unit 22 . Figure 4 It is the flow diagram of the reaction materials in the packing component 2.

[0044] like Figure 1 As shown, the pipeline reactor 100 according to the present invention includes: a pipe body 1, a filler component 2, a connecting component 3 and a cooling liquid jacket 4.

[0045] The tube body 1 is an elongated tubular body. The filler component 2 is filled in the middle of the tube body 1 to form a baffle channel, which can be constructed as a modular combination of multiple filler units, which will be described in detail below. The connecting components 3 are respectively fixed to the two ends of the tube body 1 in the length direction, and are used to fix the ends of the tube body 1. In addition, it can also be connected to other pipeline reactors by means of interconnecting components.

[0046] like Figure 2 and Figure 3a-3cAs shown, the filler component 2 includes a first filler unit 21 and a second filler unit 22 stacked sequentially from top to bottom. That is, the first filler unit 21 and the second filler unit 22 are arranged separately or integrally, and because the shapes and structures of the two are matched with each other and connected sequentially, they can be stacked and filled into the tube body 1 or can be removed from the tube body 1 separately. Such a structural design is flexible and convenient for each to manufacture and install.

[0047] The first filler unit 21 is conical in shape, and includes a first bucket 211 (i.e., a first blocking portion, which forms an inlet 211'), a central hole 212 (i.e., a first discharge port) located in the middle of the first bucket 211, and a first support wall 213 located at the circumferential edge of the first bucket 211 and extending upward.

[0048] The second packing unit 22 has a similar conical shape to the first packing unit 21, including a second bucket 221 (i.e., a second blocking portion), an edge hole 222 (i.e., a second discharge port) located at the circumferential edge of the second bucket 221, and a second support wall 223 located at the circumferential edge of the second bucket 221 and extending upward. Since the first support wall 213 and the second support wall 223 are both raised upward from their respective buckets by a predetermined distance, the shapes and sizes of the two are matched. When the first packing unit 21 and the second packing unit 22 are arranged correspondingly and overlapped with each other, the first and second buckets 211 and 221, and the first and second support walls 213 and 223 are arranged relatively and surrounded as a whole, thereby forming a channel for the reaction materials to flow and mix, such as Figure 4 shown.

[0049] See also Figure 4 In the flow direction indicated by the arrow, in actual use, after the mixed material enters the reaction channel, it first flows downward along the first bucket 211 of the first filler unit 21. In the process of being guided by the conical surface of the first bucket 211, the material collides to achieve primary enhanced mixing (including turbulent mixing and deflected mixing) and reaction, and then flows into and passes through the central hole 212, and then is blocked by the bottom of the second bucket 221 of the second filler unit 22 below. Due to the structural change, the turbulence degree is enhanced, which causes secondary enhanced mixing and reaction. The material after secondary enhanced mixing and reaction further deflects along the conical surface of the second bucket 221. In the narrow channel, the material fully reacts and continues to pass through the edge holes 222 on the circumferential edge of the second bucket 221, forming a downward flow again, and flows to the subsequent first filler unit 21 again, and enters the first bucket. In this way, the above process is repeated, and the enhanced mixing and reaction are repeated many times until the reaction reaches the desired degree.

[0050] To be more intuitive, in the present invention, a plurality of groups of bucket-shaped structures are arranged in an interlaced manner, wherein the first filler unit of each group is a bucket-shaped structure with a bottom opening, the second filler unit is a bucket-shaped structure with an edge opening, and the bottom opening of the first filler unit is nested in the bucket-shaped structure of the second filler unit. As a result, in the process of sequentially flowing through the bucket surface and the back of the first and second filler units, the material is mixed due to the blocking structure at the opening and the mixing effect is enhanced due to the continuous contraction and dispersion of the flow path.

[0051] The narrow channel structure in the pipe reactor increases the temperature gradient, and the larger specific surface area greatly enhances the heat transfer capacity of the pipe reactor. The heat transfer coefficient can be as high as 2500W / (m2, which is at least one order of magnitude larger than the heat transfer coefficient of the traditional heat exchanger.

[0052] For a mixing reactor, the relationship between transfer time and transfer distance can be described by the following formula:

[0053]

[0054] In formula (1), t min —The time required to achieve complete mixing; I-transfer distance; D-transfer diffusion coefficient. The mixing time is proportional to the square of the transfer distance, so the narrow channel size greatly increases the reaction mixing time.

[0055] In addition, in the upper and lower layers of filler components 2, the first filler unit 21 of the lower layer can also be provided with a first blocking portion (not shown), for example, a concave shape, at the edge hole 222 corresponding to the second filler unit 22 of the upper layer, so that the materials can be mixed again here and flow out again each time.

[0056] Therefore, according to the concept of the present invention, the structure of the upper and lower buckets is provided to provide two independent and interconnected material mixing and reaction areas, and two enhanced mixing and reactions occur in a single filler component, thereby improving the mixing efficiency, being beneficial to the full reaction of the materials, and making full use of the limited space in the tube, increasing the material flow rate, lengthening the mixing path, and reducing the volume required for the mixing structure, which is particularly suitable for the production of high-risk chemicals.

[0057] In addition, the cross-sectional shape of the bucket of the first packing unit 21 and the second packing unit 22 includes but is not limited to a V-shaped cone, and may also be an arc shape or a polygonal prism shape, and the bucket is a symmetrical structure, and the extension line of the extended channel along the outlet is symmetrically arranged along the symmetry axis. Such a design can ensure that the flow process and speed of the medium (such as fluid) discharged from both sides are almost the same, further improving the mixing efficiency. At the same time, there is only one center hole 212 and four edge holes 222 in the figure, but those skilled in the art can understand that the number and form of the holes are not limited, and can be one or more, and can be circular or other suitable shapes, as long as an open space for the flow of materials can be provided. In addition, these holes can be outlets with a conical cross-sectional structure.

[0058] The connecting parts 3 and 3' are located at both ends of the length direction of the pipe body 1, and include connecting flanges 31 and 31', hollow nuts 32 and 32' with external threads, and interconnection units 33 and 33'. One of the connecting flanges 31 is fixed to the pipe body 1, and the size of its packing hole 311 is designed to be large enough to allow the first packing unit 21 and the second packing unit 22 to be inserted from the packing hole 311. After the installation is completed, the hollow nut 32 is screwed into the packing hole 311, so that the packing component 2 can be pressed and fixed in the pipe body 1. Of course, other connection methods can also be used to fix the packing component 2, not limited to the above-mentioned threaded structure. Figure 5a-Figure 5b As shown, the central hole 321 of the hollow nut 32 is used as a material inlet and outlet, and can also be used for installation and fixing.

[0059] Of course, in addition to using a single tube, multiple pipeline reactors can also be connected in series. The modularization of the connecting component 3 provides the possibility of flexible configuration. Since the amount of material entering a single pipeline reactor is limited, the pressure and danger of dangerous chemicals during the reaction are also reduced, ensuring production safety. An interconnection unit 33 and a detection component for detecting process parameters such as reaction temperature and pressure are set at the interface where each reactor is connected.

[0060] The cooling liquid jacket 4 is connected to the cooling liquid jacket 4 by means of interfaces 41 and 42 ( Figure 1 ) etc. are injected into the cooling liquid channel for heating or cooling liquid to circulate inside. Here, the cooling liquid jacket 4 is integral and is provided with a circulation pipeline for the cooling liquid.

[0061] The filler component 2 can be a metal material, such as stainless steel, nickel-based alloy, special non-ferrous metal (titanium, tantalum, niobium, zirconium, etc.), or a combination of one or more non-metallic materials (such as SiC, acrylic, quartz, etc.). Different channel materials can be replaced according to different reaction requirements to adapt to different reaction conditions, such as metal materials are more resistant to high pressure, and SiC materials are more resistant to acid and alkali corrosion. They can be replaced during different chemical reactions or physical reactions.

[0062] The reaction material can be gaseous, liquid or solid, and is used to carry out physical reaction (mixing, dispersion, emulsification, suspension, etc.) or chemical reaction (oxidation; reduction, etc.) in the channel.

[0063] Since the present invention is specially designed for the production of high-pressure hazardous chemicals, not only is the interior of the pipeline reactor sealed, but also the reaction time and reaction speed of the material are controlled by adjusting the pressure difference between the material inlet and the material outlet to keep them within the desired range. When it is necessary to shorten the reaction time and speed up the reaction speed, the pressure difference between the inlet and the outlet is increased, the flow rate is increased, and the reactants are discharged from the material outlet as soon as possible. Conversely, when it is necessary to extend the reaction time and slow down the reaction speed, the pressure difference between the inlet and the outlet is reduced, and the reactants will stay longer and then be discharged from the material outlet.

[0064] According to the design of the present invention, in order to fully maintain the mixing efficiency and the degree of reaction, it will be understood by those skilled in the art that the length and diameter of the pipeline reactor should be designed and an appropriate aspect ratio should be maintained. In the present embodiment, the inner diameter of the tube within the range of 300-1000mm is adopted, and more preferably the inner diameter of the tube is 500mm, 400mm, 300mm, 200mm, 150mm, 100mm, 60mm, 40mm, 30mm, 20mm. Too large an inner diameter of the tube will increase the liquid holding capacity of the reactor and increase the danger. Too small an inner diameter of the tube makes it difficult to manufacture, and the linear speed during mixing is limited, and a good mixing effect cannot be achieved. In addition, the taper of the conical structure of the first packing unit 21 and the second packing unit 22 is preferably within the range of 45°-80°, and the gentler the slope, the more the logistics mixing time can be increased, so that the space in the tube can be maximized to strengthen the mixture flow multiple times and increase the stroke of the material in the tube.

[0065] Therefore, the pipeline reactor according to the present invention can significantly improve the mixing degree of fluids, enhance mass transfer performance, improve overall heat transfer efficiency, shorten reaction time, improve reaction yield and product purity, reduce safety hazards, and is suitable for a variety of low-temperature, high-temperature, high-risk, heterogeneous chemical reactions. For example, the pipeline reactor can be applied to the production process of the inflammable and explosive triethylaluminum continuous reaction, the design pressure of the pipe body is 9.8Mpa, and the design temperature is 150°C.

[0066] In summary, it can be seen that the internal channel size of the pipeline reactor according to the present invention is small, the fluid thin layer spacing is small, and rapid microscopic mixing between the reaction materials can be achieved through the viscous deformation and molecular diffusion of the fluid micro-groups; the pipeline reactor has a very large specific surface area, and there is sufficient contact area between the fluid and the wall, so the heat exchange efficiency is significantly improved, and in-situ efficient heat exchange can be achieved during the reaction process; furthermore, the small amount of liquid holding in the microchannel reactor channel makes the microchannel reactor have obvious safety performance; based on the above characteristics, this type of reactor can be used in chemical reaction processes with rapid mixing, strong heat release and flammable and explosive properties, and can significantly improve process safety and realize continuous operation.

[0067] This application includes the following implementations:

[0068] Embodiment 1. A packing assembly comprising:

[0069] a first filling unit, wherein the first filling unit has a first discharge port, so that the material flows out through the first discharge port; and

[0070] The second filling unit is arranged on the first discharge port side of the first filling unit and has a second blocking portion and a second discharge port. The position of the second blocking portion corresponds to the first discharge port, so that the material flowing through the first discharge port is blocked by the second blocking portion, flows through the second discharge port, and flows into the next layer when several filling components are stacked.

[0071] In some embodiments, the packing assembly has a diameter of 0.01 to 1 meter.

[0072] Embodiment 2. The filler assembly as described in other embodiments is characterized in that the first discharge port and the second discharge port each independently protrude in the discharge direction, for example, are conical outlets.

[0073] Embodiment 3. The filler assembly as described in other embodiments is characterized in that the first filler unit further has a first blocking portion, and the position of the second discharge port is arranged corresponding to the first blocking portion.

[0074] Embodiment 4. A filler assembly as described in other embodiments, characterized in that the first discharge port is arranged in the middle of the first filler unit, and the second discharge port is arranged at the edge of the second filler unit; or, the second discharge port is arranged in the middle of the second filler unit, and the first discharge port is arranged at the edge of the first filler unit.

[0075] Embodiment 5. A filler assembly as described in other embodiments is characterized in that the first filler unit and the second filler unit are each independently formed with a first and a second longitudinally extending support wall on the periphery, and the shapes of the first and second support walls match and abut against each other, thereby forming a predetermined mixing space between the second filler unit and the first filler unit.

[0076] Embodiment 6. The packing assembly as described in other embodiments is characterized in that both the first packing unit and the second packing unit have rounded edges.

[0077] Embodiment 7. The packing assembly as described in other embodiments is characterized in that the first packing unit and the second packing unit are arranged separately and / or integrally with each other, and can be detachably installed in the reactor.

[0078] Embodiment 8. A filler assembly as described in other embodiments, characterized in that the first filler unit is a bucket-shaped structure with the first discharge port at the bottom, and the second filler unit is a bucket-shaped structure with the second discharge port at the edge, and the bottom of the bucket-shaped structure of the first filler unit is inserted into the bucket-shaped structure of the second filler unit, thereby, the material flows through the bucket surface and bucket back of the first and second filler units respectively.

[0079] Embodiment 9. A tubular reactor comprises a tubular reactor body having a tubular reaction channel therein; and one or more packing assemblies described in any one of Embodiments 1 to 8, wherein the outer peripheral edges of the first packing unit and the second packing unit of the packing assembly cooperate with the shape of the inner peripheral edges of the tubular reaction channel, so that fluid reactants are transported in the tubular reaction channel through the packing assembly.

[0080] Embodiment 10. The tubular reactor according to embodiment 9 is characterized in that it comprises at least two stacked packing assemblies according to any one of embodiments 1 to 8, wherein adjacent second packing units and first packing units between two adjacent packing assemblies abut against each other to form a predetermined mixing space between the two packing assemblies.

[0081] The present invention has been described by the above embodiments, but it should be understood that the above embodiments are only for the purpose of example and description, and are not intended to limit the present invention to the scope of the described embodiments. In addition, it can be understood by those skilled in the art that the present invention is not limited to the above embodiments, and more variations and modifications can be made according to the teachings of the present invention, and these variations and modifications all fall within the scope of the protection claimed by the present invention. The protection scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. A packing assembly comprising: A first filling unit, wherein the first filling unit has a first discharge port, so that the material flows out through the first discharge port; as well as The second filler unit is arranged on the first discharge port side of the first filler unit and has a second blocking portion and a second discharge port, the position of the second blocking portion corresponds to the first discharge port, so that the material flowing through the first discharge port is blocked by the second blocking portion, flows through the second discharge port, and flows into the next layer when several filler assemblies are stacked, wherein the first filler unit is a bucket-shaped structure with the first discharge port at the bottom, and the second filler unit is a bucket-shaped structure with the second discharge port at the edge, and the bottom of the bucket-shaped structure of the first filler unit is sleeved in the bucket-shaped structure of the second filler unit, thereby, the material flows through the bucket surface and bucket back of the first and second filler units respectively, and the diameter of the filler assembly is 0.01 to 1 meter.

2. The packing assembly according to claim 1, wherein: The first discharge port and the second discharge port each independently protrude in a discharge direction.

3. The packing assembly according to claim 1 or 2, wherein: The first filling unit further has a first blocking portion, and the position of the second discharge port is arranged corresponding to the first blocking portion.

4. The packing assembly of claim 1 or 2, wherein the first discharge port is disposed at a middle portion of the first packing unit, and the second discharge port is disposed at an edge of the second packing unit.

5. The packing assembly according to claim 1 or 2, wherein: The first filler unit and the second filler unit are each independently formed with a first and a second longitudinally extending support wall on the periphery, and the shapes of the first and second support walls match and abut against each other, thereby forming a predetermined mixing space between the second filler unit and the first filler unit.

6. A packing assembly according to claim 1 or 2, wherein: The first packing unit and the second packing unit both have rounded edges.

7. A packing assembly according to claim 1 or 2, wherein: The first filler unit and the second filler unit are separately and / or integrally arranged and can be detachably installed in the reactor.

8. A tubular reactor, comprising a tubular reactor body having a tubular reaction channel therein; and one or more packing components according to any one of claims 1 to 7, wherein the outer peripheral edges of the first packing unit and the second packing unit of the packing component cooperate with the shape of the inner peripheral edge of the tubular reaction channel, so that fluid reactants are transported in the tubular reaction channel through the packing component.

9. The pipeline reactor according to claim 8, comprising at least two stacked packing assemblies, wherein the adjacent second packing units and the adjacent first packing units between two adjacent packing assemblies abut against each other, and a predetermined mixing space is formed between the two packing assemblies.

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