reactor

Abstract

The application provides a reactor, comprising: a feeding assembly, the feeding assembly comprising a first material inlet for feeding a first material and a second material inlet for feeding a second material, the feeding assembly having a plurality of first communication channels and a plurality of second communication channels, the first material inlet being in communication with the plurality of first communication channels, and the second material inlet being in communication with the plurality of second communication channels; a plurality of mixing reaction components, the plurality of first communication channels and the plurality of second communication channels being in communication with the mixing reaction components, so that the first material and the second material form a mixed material in the mixing reaction components to perform a chemical reaction; and a heat exchange assembly, the heat exchange assembly being located outside the plurality of mixing reaction components, the heat exchange assembly having a heat exchange cavity for feeding a refrigerant, and the heat exchange assembly being connected with the plurality of mixing reaction components to perform heat exchange between the heat exchange assembly and the plurality of mixing reaction components. The application solves the problem of low heat transfer efficiency of the reactor in the prior art.

Description

TECHNICAL FIELD

[0001] The present application relates to the chemical technology field, and in particular, relates to a reactor. BACKGROUND

[0002] In the scale-up production process of chemical industry and medicine, especially the synthesis of organic chemicals, a large number of strong corrosive, flammable and explosive chemicals are included in the reaction system, and the reaction process has the characteristics of fast reaction rate and serious heat release. If the heat generated by the reaction cannot be removed in time, safety accidents are easily caused, and personnel casualties are caused.

[0003] Specifically, the reactor device mainly includes a kettle reactor, a tubular reactor and a plate reactor. The kettle reactor is more mature in technology and has greater operation flexibility, and is widely used in the production process of reaction and heat exchange. However, the heat exchange of the kettle reactor also has obvious shortcomings, for example: the scale-up effect is more obvious, and it also has adverse effects on the processes such as "three transmission and one reaction", thereby affecting the reaction effect.

[0004] Compared with the kettle reactor, the tubular reactor and the plate reactor have the characteristics of small size, large heat transfer area and flat plug flow, which is beneficial to realize the continuous chemical reaction. Therefore, the tubular reactor and the plate reactor are particularly suitable for strong exothermic reactions. By using the tubular reactor and the plate reactor instead of the kettle reactor, the heat released by the reaction can be removed more quickly, so that the reaction heat cannot be accumulated, which is beneficial to realize the safety of the production process. In addition, the tubular reactor and the plate reactor are also beneficial to the precise control of the material flow rate, the reaction temperature and the like, and are beneficial to realize the automation of control.

[0005] However, in the current strong endothermic / exothermic reactor, the tubular reactor generally adopts the form of spiral coil pipe. The inside of the spiral coil pipe is empty, and the distributor adopts the form of a head to distribute the fluid. After two streams of fluid are combined, they enter a spiral coil pipe. The heat transfer area of a single spiral coil pipe is insufficient, which easily leads to low heat transfer efficiency between the reaction compounds in the spiral coil pipe and the refrigerant outside the spiral coil pipe, thereby causing the problem that the reaction temperature of the tubular reactor is difficult to control and the raw material remains. SUMMARY

[0006] The main purpose of the present application is to provide a reactor to solve the problem of low heat transfer efficiency of the reactor in the prior art.

[0007] In order to achieve the above object, according to one aspect of the present application, a reactor is provided, comprising: a feeding assembly, the feeding assembly comprising a first material inlet for feeding a first material and a second material inlet for feeding a second material, the feeding assembly having a plurality of first communication channels and a plurality of second communication channels, the first material inlet being in communication with the plurality of first communication channels, and the second material inlet being in communication with the plurality of second communication channels; a plurality of mixing reaction components, the plurality of first communication channels and the plurality of second communication channels being in communication with the mixing reaction components, so that the first material and the second material form a mixed material in the mixing reaction components and perform a chemical reaction; and a heat exchange assembly, the heat exchange assembly being located outside the plurality of mixing reaction components, the heat exchange assembly having a heat exchange cavity for feeding a refrigerant, the heat exchange assembly being connected with the plurality of mixing reaction components, so that heat exchange is performed between the heat exchange assembly and the plurality of mixing reaction components.

[0008] Further, each of the plurality of mixing reaction components comprises: a mixing reaction tube, the mixing reaction tube being arranged in a curved manner; and a plurality of first mixing protrusions, the plurality of first mixing protrusions being arranged on an inner wall of a lumen of the mixing reaction tube in sequence along a flow direction of the mixed material.

[0009] Further, the heat exchange assembly comprises: a shell, the shell having the heat exchange cavity, and the plurality of mixing reaction components being located in the heat exchange cavity; wherein the shell is provided with a refrigerant inlet for feeding the refrigerant into the heat exchange cavity, so that the refrigerant contacts outer walls of the mixing reaction tubes of the plurality of mixing reaction components to achieve heat exchange.

[0010] Further, the heat exchange assembly further comprises: a plurality of fins, at least one fin being arranged on the outer wall of the mixing reaction tube of each of the mixing reaction components.

[0011] Further, the feeding assembly comprises: a first feeding component, the first feeding component comprising a first main feeding pipe and a plurality of first feeding sub-pipes, the plurality of first feeding sub-pipes being in communication with the first main feeding pipe, a first pipe opening of the first main feeding pipe being the first material inlet, and a lumen of each of the first feeding sub-pipes being the first communication channel; and a second feeding component, the second feeding component comprising a second main feeding pipe and a plurality of second feeding sub-pipes, at least a portion of the second main feeding pipe being sleeved outside the first main feeding pipe, so that a space between outer walls of the second main feeding pipe and the first main feeding pipe forms a second main feeding channel, the plurality of second feeding sub-pipes being in communication with the second main feeding pipe, a second pipe opening of the second main feeding pipe being the second material inlet, and a lumen of each of the second feeding sub-pipes being the second communication channel.

[0012] Further, the second main feeding pipe comprises: a first feeding pipe section, the first feeding pipe section is sleeved on the first main feeding pipe and connected with the outer wall of the first main feeding pipe; a second feeding pipe section, the second feeding pipe section is connected with the first feeding pipe section, the extension direction of the second feeding pipe section is arranged at a preset included angle with the extension direction of the first feeding pipe section, and the end of the second feeding pipe section away from the first feeding pipe section is provided with a second pipe opening.

[0013] Further, the plurality of first feeding sub-pipes each have a first communication pipe section, and the plurality of second feeding sub-pipes each have a second communication pipe section, the first communication pipe section is connected with the second communication pipe section, so that the first material and the second material meet at the connection between the first communication pipe section and the second communication pipe section; wherein the first communication pipe section and the second communication pipe section are arranged at a preset included angle.

[0014] Further, the plurality of mixing reaction components each comprise: a mixing reaction plate, the mixing reaction plate has a flow channel therein, the flow channel comprises a mixing reaction flow channel section, the mixing reaction flow channel section is arranged in sequence and curved; a plurality of second mixing protrusions, the plurality of second mixing protrusions are uniformly distributed in the mixing reaction flow channel section.

[0015] Further, the heat exchange assembly comprises: a plurality of heat exchange plates, each heat exchange plate has a heat exchange cavity; a refrigerant feeding component, the refrigerant feeding component has a main refrigerant inlet and a plurality of refrigerant communication channels, the plurality of refrigerant communication channels are in one-to-one correspondence with the plurality of heat exchange plates and are in communication, so as to introduce refrigerant into the heat exchange cavity of each heat exchange plate; wherein the plurality of heat exchange plates and the mixing reaction plates of the plurality of mixing reaction components are arranged in sequence and staggered, so that the mixing reaction plates of each mixing reaction component are respectively in contact with the corresponding heat exchange plates, so as to realize heat exchange.

[0016] Further, the feeding assembly comprises: a third feeding component, the third feeding component has a third main feeding pipe and a plurality of third feeding sub-pipes, the plurality of third feeding sub-pipes are in communication with the third main feeding pipe, the lumen of each third feeding sub-pipe is a first communication channel; a fourth feeding component, the fourth feeding component has a fourth main feeding pipe and a plurality of fourth feeding sub-pipes, the plurality of fourth feeding sub-pipes are in communication with the fourth main feeding pipe, the lumen of each fourth feeding sub-pipe is a second communication channel; wherein the third feeding component and the fourth feeding component are respectively arranged on both sides of the mixing reaction plate.

[0017] The application provides a reactor, which comprises a feeding assembly, a plurality of mixed reaction components and a heat exchange assembly.BRIEF DESCRIPTION OF DRAWINGS BRIEF DESCRIPTION OF DRAWINGS

[0018] The drawings constituting a part of the specification of the application are used to provide further understanding of the application, the illustrative embodiments of the application and the description thereof are used to explain the application, and do not constitute improper limitation on the application. In the drawings:

[0019] Figure 1 A structure schematic view of a mixed reaction tube inside a shell of a first embodiment of the reactor according to the application is shown;

[0020] Figure 2 A sectional view of the first embodiment of the reactor according to the application is shown;

[0021] Figure 3 An appearance schematic view of the first embodiment of the reactor according to the application is shown;

[0022] Figure 4 An appearance schematic view of a second embodiment of the reactor according to the application is shown;

[0023] Figure 5 A side view of the second embodiment of the reactor according to the application is shown;

[0024] Figure 6 A structure schematic view of a B-B section of the reactor according to the application is shown; Figure 5

[0025] A structure schematic view of an A-A section of the reactor according to the application is shown; Figure 7 Figure 5 A structure schematic view of an A-A section of the reactor according to the application is shown;

[0026] Figure 8 shows a cross-sectional view of the third feeding component or the fourth feeding component of the second embodiment of the reactor according to the present application;

[0027] Figure 9 shows a cross-sectional view of the coolant feeding component of the second embodiment of the reactor according to the present application;

[0028] Figure 10 shows a structural schematic diagram of the mixed reaction tube of the first embodiment of the reactor according to the present application;

[0029] Figure 11 shows a simulation schematic diagram of the first embodiment of the reactor according to the present application;

[0030] Figure 12 shows a simulation schematic diagram of the second embodiment of the reactor according to the present application.

[0031] Wherein, the above figures include the following reference signs:

[0032] 1, feeding assembly; 101, first material inlet; 102, second material inlet; 103, material outlet; 110, first communication channel; 120, second communication channel; 11, first feeding component; 111, first main feeding pipe; 112, first feeding sub-pipe; 12, second feeding component; 121, second main feeding pipe; 122, second feeding sub-pipe; 1211, first feeding pipe section; 1212, second feeding pipe section; 1120, first communication pipe section; 1220, second communication pipe section; 13, third feeding component; 131, third main feeding pipe; 132, third feeding sub-pipe; 14, fourth feeding component; 141, fourth main feeding pipe; 142, fourth feeding sub-pipe; 15, discharging component;

[0033] 2, mixed reaction component; 20, mixed reaction tube; 21, first mixed protrusion; 22, mixed reaction plate; 220, flow channel; 221, mixed reaction flow channel section; 23, second mixed protrusion;

[0034] 3, heat exchange assembly; 300, heat exchange cavity; 30, shell; 301, coolant inlet; 302, coolant outlet; 31, fin; 32, heat exchange plate; 33, coolant feeding component; 330, main coolant inlet; 331, coolant communication channel; 34, coolant discharging component. DETAILED DESCRIPTION

[0035] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0036] Please refer toFigures 1 to 10 The present application provides a reactor, comprising: a feeding assembly 1, the feeding assembly 1 comprising a first material inlet 101 for feeding a first material and a second material inlet 102 for feeding a second material, the feeding assembly 1 having a plurality of first communication channels 110 and a plurality of second communication channels 120, the first material inlet 101 being in communication with the plurality of first communication channels 110, and the second material inlet 102 being in communication with the plurality of second communication channels 120; a plurality of mixing reaction components 2, the plurality of first communication channels 110 and the plurality of second communication channels 120 being in communication with the mixing reaction components 2, so that the first material and the second material form a mixed material in the mixing reaction components 2 and perform a chemical reaction; and a heat exchange assembly 3, the heat exchange assembly 3 being located outside the plurality of mixing reaction components 2, the heat exchange assembly 3 having a heat exchange cavity 300 for feeding a coolant, and the heat exchange assembly 3 being connected with the plurality of mixing reaction components 2 to perform heat exchange between the heat exchange assembly 3 and the plurality of mixing reaction components 2. Through the above arrangement, the heat exchange assembly 3 can simultaneously perform heat exchange with the plurality of mixing reaction components 2, so that the heat exchange area between the heat exchange assembly 3 and the mixing reaction components 2 is increased, and the heat exchange efficiency between the heat exchange assembly 3 and the mixing reaction components 2 is ensured, thereby solving the problems that the reaction temperature in the mixing reaction components 2 of the reactor is difficult to control and the raw materials are excessive.

[0037] Optionally, the number of the mixing reaction components 2 is 3 to 20, which can be selected according to actual conditions.

[0038] In the embodiment of the present application, the number of the mixing reaction components 2 is 10.

[0039] In the first embodiment of the present application, as shown in Figures 1 to 3 the reactor is a tubular reactor, and each of the plurality of mixing reaction components 2 comprises: a mixing reaction tube 20, the mixing reaction tube 20 being arranged in a bending manner; and a plurality of first mixing protrusions 21, the plurality of first mixing protrusions 21 being arranged on the inner wall of the lumen of the mixing reaction tube 20, and being arranged in sequence along the flow direction of the mixed material to provide resistance to the flow of the mixed material through the plurality of first mixing protrusions 21, so that the mixed material is mixed sufficiently.

[0040] In order to increase the heat exchange area of the heat exchange assembly 3, in the first embodiment of the present application, the heat exchange assembly 3 comprises: a shell 30, the shell 30 having a heat exchange cavity 300, and the plurality of mixing reaction components 2 being located in the heat exchange cavity 300; and wherein the shell 30 is provided with a coolant inlet 301 to feed the coolant into the heat exchange cavity 300, so that the coolant contacts the outer wall of the mixing reaction tube 20 of the plurality of mixing reaction components 2 to achieve heat exchange.

[0041] Specifically, the shell 30 is provided with a coolant outlet 302, and the coolant outlet is in communication with the heat exchange cavity 300 of the shell 30.

[0042] In order to further increase the heat exchange area of the mixing reaction tube of each mixing reaction component 2 and ensure the heat exchange efficiency, the heat exchange assembly 3 further comprises a plurality of fins 31, and at least one fin 31 is arranged on the outer wall of the mixing reaction tube 20 of each mixing reaction component 2.

[0043] Specifically, the size of the fin is that the fin height is 2mm to 10mm, the pitch is 10mm to 20mm, the thickness is 0.5mm to 2mm, and the inclination angle between the protruding direction of the fin and the axis of the mixing reaction tube is 0 to 45°.

[0044] As shown in Figure 2 The feeding assembly 1 comprises a first feeding component 11, the first feeding component 11 comprises a first main feeding pipe 111 and a plurality of first feeding branch pipes 112, the plurality of first feeding branch pipes 112 are in communication with the first main feeding pipe 111, the first pipe opening of the first main feeding pipe 111 is the first material inlet 101, and the lumen of each first feeding branch pipe 112 is the first communication channel 110; and a second feeding component 12, the second feeding component 12 comprises a second main feeding pipe 121 and a plurality of second feeding branch pipes 122, at least part of the second main feeding pipe 121 is sleeved outside the first main feeding pipe 111, so that the space between the second main feeding pipe 121 and the outer wall of the first main feeding pipe 111 forms a second main feeding channel, the plurality of second feeding branch pipes 122 are in communication with the second main feeding pipe 121, the second pipe opening of the second main feeding pipe 121 is the second material inlet 102, and the lumen of each second feeding branch pipe 122 is the second communication channel 120. Through the above arrangement, the structure between the first feeding component and the second feeding component can be compact.

[0045] Specifically, the second main feeding pipe 121 comprises a first feeding pipe section 1211, the first feeding pipe section 1211 is sleeved on the first main feeding pipe 111 and connected with the outer wall of the first main feeding pipe 111; and a second feeding pipe section 1212, the second feeding pipe section 1212 is connected with the first feeding pipe section 1211, the extension direction of the second feeding pipe section 1212 is arranged at a preset angle with the extension direction of the first feeding pipe section 1211, and the end of the second feeding pipe section 1212 away from the first feeding pipe section 1211 has a second pipe opening. Through the above arrangement, the first material and the second material are not easy to interfere with each other in the process of the first material entering through the first pipe opening of the first main feeding pipe 111 and the second material entering from the second pipe opening.

[0046] As shown in Figure 2As shown, the plurality of first feeding sub-pipes 112 each has a first communicating pipe segment 1120, and the plurality of second feeding sub-pipes 122 each has a second communicating pipe segment 1220, the first communicating pipe segment 1120 is connected with the second communicating pipe segment 1220 to make the first material and the second material meet at the connection of the first communicating pipe segment 1120 and the second communicating pipe segment 1220; wherein the first communicating pipe segment 1120 and the second communicating pipe segment 1220 are arranged at a preset included angle.

[0047] In the embodiments of the present application, the first communicating pipe segment 1120 and the second communicating pipe segment 1220 are arranged at an included angle of 90°.

[0048] Specifically, the plurality of second feeding sub-pipes 122 are arranged at intervals around the first feeding component; the plurality of mixing reaction components 2 are connected with the plurality of second feeding sub-pipes 122 one by one; the shell 30 is cylindrical, and the mixing reaction pipe 20 of each mixing reaction component 2 is arranged in sequence along the radial direction of the shell 30.

[0049] Specifically, along the radial direction of the shell 30, the mixing reaction pipe 20 of each mixing reaction component 2 has a plurality of curved pipe segments and a plurality of parallel mixed pipe segments, and two adjacent mixed pipe segments are connected by a curved pipe segment; wherein at least one fin is arranged on each mixed pipe segment; a first mixing protrusion 21 is arranged in each mixed pipe segment.

[0050] Specifically, the reactor comprises a discharge pipe connected with the shell 30, the discharge pipe has a material outlet 103, and the material outlet 103 is communicated with the mixing reaction pipe 20 of each mixing reaction component 2, so that the mixed material after the mixing reaction of the mixing reaction pipe of each mixing reaction component 2 flows out through the material outlet 103.

[0051] Specifically, the mixing reaction pipe 20 of each mixing reaction component 2 comprises a first pipe segment and a second pipe segment connected with each other, the pipe diameter of the first pipe segment is smaller than the pipe diameter of the second pipe segment; the first pipe segment and the second pipe segment are arranged in sequence along the flow direction of the mixed material.

[0052] In the implementation of the first embodiment of the present application, the first material and the second material meet at the junction between the first communication pipe section 1120 and the second communication pipe section 1220 (arranged at an angle of 90°), and the first material and the second material after meeting perform slight exothermic reaction, and at the same time, the first material and the second material form a mixed material, the mixed material continues to flow downward, passes through the first mixing protrusion 21 in the mixing reaction pipe 20, and the first material and the second material are fully mixed and mass transfer, and the mixing is sufficient in the mixing reaction pipe 20, and a large amount of heat is released instantaneously, and the generated heat is transmitted to the refrigerant in the shell 30 through the pipe wall and the fin 31 of the mixing reaction pipe 20, and the mixed material continues to flow in the mixing reaction pipe 20 until the material meeting flows out of the mixing reaction pipe 20 and reaches the material outlet 103 at the bottom of the reactor. In the design, the material flow and the liquid holdup of the reactor are fully considered to ensure sufficient residence time of the material in the reactor, prolong the reaction time, and enhance the heat exchange efficiency.

[0053] Optionally, in the tubular reactor, the diameter of the shell 30 ranges from 50 mm to 800 mm, and the height of the shell 30 ranges from 60 mm to 800 mm.

[0054] Optionally, the diameter of the mixing reaction pipe 20 ranges from 1 mm to 20 mm.

[0055] In the first embodiment of the present application, the feed pipe (feed assembly 1) is divided into 10 feed sub-pipes (including the first feed sub-pipe 112 and the second feed sub-pipe 122) after entering the cylinder, and the first feed sub-pipe 112 and the second feed sub-pipe 122 are communicated with the mixing reaction pipe 20 after intersecting and converging, and the interior is a static mixer, arranged in three layers, and the processing mode is metal 3D printing, and the printing is performed in the mode of selective laser melting (SLM), and pre-treatment is required in the early stage, and the Magics software is used for processing, and the processing time is about 100 hours, and post-processing technologies such as powder cleaning, piece fishing, heat treatment, wire cutting, support removal, polishing, polishing, and X-ray detection are required in the later stage, and the material of the mixing reaction pipe and the shell is the same, and the mixing reaction pipe and the shell are both made of metal material, and optionally, the metal material is stainless steel, titanium alloy, or hastelloy metal material. Each mixing reaction pipe 20 is arranged in sequence to bend, so that each mixing reaction pipe 20 includes a plurality of vertical pipe sections distributed in the radial direction of the shell 30; wherein the static mixer is arranged in three layers, that is, each mixing reaction pipe 20 includes three vertical pipe sections distributed in the radial direction of the shell 30.

[0056] In the second embodiment of the present application, as Figures 4 to 9As shown, the reactor is a plate reactor, and each of the plurality of mixed reaction components 2 comprises: a mixed reaction plate 22, the mixed reaction plate 22 having a flow channel 220 therein, the flow channel 220 comprising mixed reaction flow channel segments 221 arranged in sequence and curved; and a plurality of second mixed projections 23 uniformly distributed in the mixed reaction flow channel segments 221.

[0057] The working principle of the plate reactor is similar to that of the tubular reactor, with the difference being that the tubular reactor transfers heat through the tube wall, and the coolant in the jacket has no distribution structure; while the plate reactor transfers heat through the thin wall of the plate, and has a larger heat exchange area.

[0058] In order to increase the heat exchange area of the plurality of mixed reaction components 2, the heat exchange assembly 3 comprises: a plurality of heat exchange plates 32, each of which has a heat exchange cavity 300; and a coolant feeding component 33 having a main coolant inlet 330 and a plurality of coolant communication channels 331, the plurality of coolant communication channels 331 being in one-to-one correspondence with the plurality of heat exchange plates 32 and being in communication with the heat exchange cavities 300 of the plurality of heat exchange plates 32 to feed the coolant into the heat exchange cavities 300 of the plurality of heat exchange plates 32; wherein the plurality of heat exchange plates 32 and the mixed reaction plates 22 of the plurality of mixed reaction components 2 are arranged in sequence and staggered, so that the mixed reaction plates 22 of the plurality of mixed reaction components 2 are in contact with the corresponding heat exchange plates 32 respectively to realize heat exchange.

[0059] As shown in Figure 9 The coolant feeding component 33 comprises a plurality of partition plates, and has a coolant feeding cavity in communication with the main coolant inlet 330, the plurality of partition plates being arranged in the coolant feeding cavity to divide the coolant feeding cavity into a plurality of coolant communication channels 331.

[0060] As shown in Figure 8 The feeding assembly 1 comprises: a third feeding component 13 having a third main feeding pipe 131 and a plurality of third feeding sub-pipes 132, the plurality of third feeding sub-pipes 132 being in communication with the third main feeding pipe 131, and the lumen of each third feeding sub-pipe 132 being the first communication channel 110; and a fourth feeding component 14 having a fourth main feeding pipe 141 and a plurality of fourth feeding sub-pipes 142, the plurality of fourth feeding sub-pipes 142 being in communication with the fourth main feeding pipe 141, and the lumen of each fourth feeding sub-pipe 142 being the second communication channel 120; wherein the third feeding component 13 and the fourth feeding component 14 are arranged on the two sides of the mixed reaction plate 22 respectively.

[0061] As shown in Figure 6 In one heat exchange plate 32, the axis of the first communication channel 110 and the axis of the second communication channel 120 coincide.

[0062] In the second embodiment of the present application, the reactor further comprises a discharging component 15 and a refrigerant discharging component 34, the third pipe opening of the discharging component 15 is a material outlet, the discharging component is in communication with the mixing reaction plates 22 of the plurality of mixing reaction components 2, so that the mixture after the mixing reaction of the mixing reaction plates 22 of the plurality of mixing reaction components 2 flows out through the material outlet of the discharging component 15. Among them, the discharging component 15 is the same in structure as the third feeding component and the fourth feeding component; the structure of the refrigerant discharging component 34 is the same as that of the refrigerant feeding component 33.

[0063] In the present application, the number of mixing reaction plates 22 is N, and the number of heat exchange plates 32 is N+1.

[0064] In the second embodiment of the present application, the heat exchange plates 32 are 11, and the mixing reaction plates 22 are 10.

[0065] Optionally, in the plate reactor, the size of the plate reactor as a whole is: the length of the plate reactor ranges from 60mm to 800mm; the width of the plate reactor ranges from 60mm to 800mm; and the thickness of the plate reactor ranges from 30mm to 700mm.

[0066] Among them, according to the size of the plate reactor as a whole, the size of the single mixing reaction plate 22 and the single heat exchange plate 32 can be selected in combination with the specific circumstances of the actual test.

[0067] In the second embodiment of the present application, the third feeding component 13 and the fourth feeding component 14 each have 10 feeding channels, so that the material enters the 10 mixing reaction plates 22 and then converges, the refrigerant feeding component 33 is divided into 11 refrigerant communication channels 331, so that the refrigerant enters the 11 heat exchange plates 32 and then converges, the processing mode is metal 3D printing, and the selective laser melting (SLM) mode is adopted for printing, and the pre-treatment is required in the early stage, the Magics software is adopted for processing, the processing time is about 100 hours, and the post-processing technology such as powder cleaning, piece fishing, heat treatment, wire cutting, support removal, polishing, polishing, X-ray detection and the like is required in the later stage, the material of the whole plate reactor is metal material, and the metal material includes stainless steel, titanium alloy or hastelloy and the like. Among them, the length direction of the plate reactor is the same as the feeding direction of the refrigerant feeding component 33 in the plate reactor. Figure 4

[0068] As shown in Figure 11 and Figure 12 , the simulation process of the tubular reactor and the plate reactor is as follows:

[0069] ​The model uses water (material) for simulation, and a laminar steady model is used for calculation, both inlet flow rates are 970 ml / min, since the liquid phase is an incompressible fluid, the specific feeding parameters are shown in the following table;

[0070] Table 1 First embodiment: feeding data in the mixed reaction tube

[0071]

[0072] As shown in Figure 11 , red represents the maximum flow rate, green represents the medium flow rate, and blue represents the minimum flow rate; it can be seen that the flow rate of the tube segment with a diameter of 5 mm is the maximum.

[0073] Table 2 First embodiment: data obtained by CFD numerical simulation of the mixed reaction tube

[0074]

[0075] In Table 2, in1 to in10 represent the feeding data of the 10 first feeding sub-tubes 112; in11 to in20 represent the feeding data of the 10 second feeding sub-tubes 122.

[0076] Simulation results:

[0077] In the tubular reactor, the theoretical average velocities of the first tube segment and the second tube segment are 0.165 m / s (flow rate in the first tube segment) and 0.064 m / s (flow rate in the second tube segment), respectively, the simulation results are 0.155-0.185 m / s and 0.054-0.085 m / s, the difference between the theoretical flow rate and the simulation flow rate is small; wherein the theoretical value of the mass flow rate of the feeding pipe is 16.18 g / s, the simulation average flow rate of the mixed reaction tube 20 should be 1.618 g / s, the simulation results are shown in Table 2, the upper and lower deviations are -3.23% to 2.46%, the deviation is small.

[0078] In the plate reactor, the velocity field in the heat exchange plate 32 is shown in Figure 12 , the blue area with small velocity is a "dead zone", that is, the flow rate in the blue area is slow, wherein the "dead zone" area is not large, which indicates that the flowability of the refrigerant in the heat exchange plate 32 is good.

[0079] The tubular reactor of the first embodiment of the present application is used to perform the following chemical experiments:

[0080] The Villermaux-Du shman reaction system (iodide and iodate reaction system) is a reaction system of Fournier et al. [91-92]The parallel competitive reaction system proposed in 1996 consists of an acid-base neutralization reaction (instantaneous completion) and an oxidation reaction (fast completion), which is based on the parallel competitive reactions shown in equations (1.2), (1.3) and (1.4):

[0081]

[0082]

[0083]

[0084] The reactant concentrations are shown in the following table:

[0085]

[0086] Material A uses potassium iodide, sodium hydroxide, potassium iodate, boric acid, and material B uses dilute sulfuric acid for testing, with an import flow rate of 1400 ml / min. Material A and material B pass through the first feeding component 11 and the second feeding component 12 of the feeding assembly 1 of the present application into the mixing reaction tube 20, and the segregation index is calculated according to the following formula to evaluate the mixing performance by the segregation index:

[0087] The iodine concentration is calculated by the above material balance to obtain the value of The segregation index Xs can be calculated using the following formulas (3.8), (3.9) and (3.10), and the segregation index Xs is used to evaluate the micro-mixing efficiency of the reactor:

[0088]

[0089]

[0090]

[0091] Wherein:

[0092] V A is the volume flow rate of the solution containing and I - , unit: L / h;

[0093] V B is the volume flow rate of the solution containing H + , unit: L / h;

[0094] is the concentration of I2 element generated in the reaction, unit: mol / L;

[0095] is the concentration of triiodide ion generated in the reaction, unit: mol / L;

[0096] The initial solution contains H + The concentration, in mol / L;

[0097] For the initial solution containing The concentration, in mol / L;

[0098] For the initial solution containing The concentration, in mol / L;

[0099] nI2 is the amount of iodine produced;

[0100] nI3 - The generated triiodine anions I3 - The amount of substance;

[0101] nH0 + The initial hydrogen ions H in the solution + The amount of substance;

[0102] Y is the amount of hydrogen ions (H+) consumed during the reaction process of the above reaction formula (1.3). + The ratio of the amount of substance of Y to the total amount of hydrogen ions added, where the smaller the Y value, the better the micro-mixing degree of the reactor;

[0103] Y ST The value is the Xs value under the completely disjoint condition, i.e., the added H. + All of it is used in reaction (1.3), and no H3BO3 is generated.

[0104] Experimental results:

[0105] 1. The decoupling index value is between 0 and 1. When Xs = 1, it is completely decoupling, and the mixing effect is the worst; when Xs = 0, it is an ideal and completely mixed state. The closer Xs is to 0, the better the micro-mixing effect.

[0106] 2. This reaction is a fast reaction. The higher the flow rate, the higher the mixing efficiency and the better the effect. The ideal separation index that a microchannel mixer can achieve is 0.003-0.004, while the separation index of conventional stirring is 0.1-0.17.

[0107] 3. In the mixing reaction tube of this application, at a flow rate of 1400 ml / min, the separation index of the tubular reactor during the above experiment was 0.042, which is significantly lower than the separation index of conventional stirring. Therefore, the mixing performance of the tubular reactor of this application is stronger than that of conventional stirring.

[0108] From the above description, it can be seen that the above-mentioned embodiments of the present application achieve the following technical effects:

[0109] The present application provides a reactor, comprising: a feeding assembly 1, the feeding assembly 1 comprising a first material inlet 101 for feeding a first material and a second material inlet 102 for feeding a second material, the feeding assembly 1 having a plurality of first communication channels 110 and a plurality of second communication channels 120, the first material inlet 101 being in communication with the plurality of first communication channels 110, and the second material inlet 102 being in communication with the plurality of second communication channels 120; a plurality of mixing reaction components 2, the plurality of first communication channels 110 and the plurality of second communication channels 120 being in communication with the mixing reaction components 2, so that the first material and the second material form a mixed material in the mixing reaction components 2 and perform a chemical reaction; and a heat exchange assembly 3, the heat exchange assembly 3 being located outside the plurality of mixing reaction components 2, the heat exchange assembly 3 having a heat exchange cavity 300 for feeding a refrigerant, the heat exchange assembly 3 being connected with the plurality of mixing reaction components 2, so that heat exchange is performed between the heat exchange assembly 3 and the plurality of mixing reaction components 2. Through the above arrangement, the heat exchange assembly 3 can simultaneously perform heat exchange with the plurality of mixing reaction components 2, so that the heat exchange area between the heat exchange assembly 3 and the mixing reaction components 2 is increased, and the heat exchange efficiency between the heat exchange assembly 3 and the mixing reaction components 2 is ensured, thereby solving the problem that the reaction temperature in the mixing reaction components 2 of the reactor is difficult to control and the raw material is excessive.

[0110] The above only describes the preferred embodiments of the present application and is not used to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A reactor characterized by, The application relates to a chemical reaction device. The chemical reaction device comprises: a feeding assembly (1) comprising a first material inlet (101) for feeding in a first material and a second material inlet (102) for feeding in a second material, the feeding assembly (1) having a plurality of first communication channels (110) and a plurality of second communication channels (120), the first material inlet (101) being in communication with the plurality of first communication channels (110), and the second material inlet (102) being in communication with the plurality of second communication channels (120); a plurality of mixing reaction components (2), the plurality of first communication channels (110) and the plurality of second communication channels (120) being in communication with the mixing reaction components (2) so that the first material and the second material form a mixed material in the mixing reaction components (2) and perform a chemical reaction; a heat exchange assembly (3) located outside the plurality of mixing reaction components (2), the heat exchange assembly (3) having a heat exchange cavity (300) for feeding in a refrigerant, and the heat exchange assembly (3) being connected with the plurality of mixing reaction components (2) so that the heat exchange assembly (3) and the plurality of mixing reaction components (2) perform heat exchange. The feeding assembly (1) comprises: a first feeding component (11) comprising a first main feeding pipe (111) and a plurality of first feeding branch pipes (112), the plurality of first feeding branch pipes (112) being in communication with the first main feeding pipe (111), a first pipe opening of the first main feeding pipe (111) being the first material inlet (101), and a pipe cavity of each first feeding branch pipe (112) being the first communication channel (110); 2. The reactor of claim 1, wherein, a second feeding component (12) comprising a second main feeding pipe (121) and a plurality of second feeding branch pipes (122), at least a part of the second main feeding pipe (121) being sleeved outside the first main feeding pipe (111) so that a space between the second main feeding pipe (121) and an outer wall of the first main feeding pipe (111) forms a second main feeding channel, the plurality of second feeding branch pipes (122) being in communication with the second main feeding pipe (121), a second pipe opening of the second main feeding pipe (121) being the second material inlet (102), and a pipe cavity of each second feeding branch pipe (122) being the second communication channel (120). The plurality of mixing reaction components (2) each comprises: a mixing reaction pipe (20) arranged in a bending mode; 3. The reactor of claim 2, wherein, a plurality of first mixing protrusions (21) arranged on an inner wall of the pipe cavity of the mixing reaction pipe (20), and the plurality of first mixing protrusions (21) being arranged in a bending mode along a flow direction of the mixed material. The heat exchange assembly (3) comprises: a shell (30) having the heat exchange cavity (300), and the plurality of mixing reaction components (2) being located in the heat exchange cavity (300). The shell (30) is provided with a refrigerant inlet (301) to introduce the refrigerant into the heat exchange cavity (300) to make the refrigerant contact with the outer wall of the mixed reaction tube (20) of the mixed reaction component (2) to realize heat exchange.

4. The reactor of claim 3, wherein, The heat exchange assembly (3) further comprises: A plurality of fins (31) are arranged on the outer wall of the mixed reaction tube (20) of each mixed reaction component (2).

5. The reactor of claim 1, wherein, The second main feed pipe (121) comprises: A first feed pipe section (1211) is sleeved on the first main feed pipe (111) and connected with the outer wall of the first main feed pipe (111); A second feed pipe section (1212) is connected with the first feed pipe section (1211), the extension direction of the second feed pipe section (1212) is arranged at a preset included angle with the extension direction of the first feed pipe section (1211), and the second pipe opening is arranged at the end of the second feed pipe section (1212) away from the first feed pipe section (1211).

6. The reactor of claim 1, wherein The first feed sub-pipe (112) is provided with a first communication pipe section (1120), and the second feed sub-pipe (122) is provided with a second communication pipe section (1220), the first communication pipe section (1120) is connected with the second communication pipe section (1220), and the first material and the second material meet at the connection between the first communication pipe section (1120) and the second communication pipe section (1220). The first communication pipe section (1120) and the second communication pipe section (1220) are arranged at a preset included angle.

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