Micro-channel reaction system

Abstract

The utility model belongs to the technical field of micro-channel reaction, and particularly relates to a micro-channel reaction system which comprises a plurality of micro-channel reaction devices, a plurality of material supply tanks and a collecting device, the micro-channel reaction devices are used for reacting two different materials, and the material supply tanks are also used for collecting the materials. The micro-channel reaction device is used for conveying various different materials to the micro-channel reaction device, the collecting device is connected to one side of an outlet of the micro-channel reaction device and is connected with a gas collecting interface and a liquid collecting interface, and a sampling interface is arranged between the collecting device and the micro-channel reaction device; the micro-channel reaction device comprises a plurality of reaction plate layers and heat exchange plate layers, and the reaction plate layers and the heat exchange plate layers are alternately overlapped; the micro-channel reaction device is provided with the reaction plate layers and the heat exchange plate layers which are alternately overlapped, so that the heat exchange plate layers are arranged on the two surfaces of each reaction plate layer, and the heat exchange efficiency and the heat exchange uniformity of the reaction plate layers can be effectively improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of microchannel reaction, and particularly relates to a microchannel reaction system. Background Art

[0002] Microchannel reaction originated from the demand for efficient and refined chemical reactions. In the early stage, it was mainly applied in the laboratory stage. In recent years, with the rapid development of microreactor technology, the channel size has extended to the millimeter level, and it can maintain the characteristics of a microreactor, meeting the needs of industrial production.

[0003] Microchannel reaction has an extremely short molecular diffusion distance and fast heat conduction performance, enabling efficient mass transfer and heat transfer, thereby improving reaction efficiency and selectivity.

[0004] In a traditional microchannel reaction system, such as a high-throughput microchannel reactor disclosed in Chinese Patent Application No. (CN202020164310.8), which includes a plurality of reaction units arranged in an overlapping manner. Each reaction unit includes a substrate, an air injection plate, and a heat exchange plate. A gas guiding groove is formed on the substrate. A first positioning groove is horizontally extended outward along the circumference of the gas guiding groove, and a second positioning groove is horizontally extended outward along the circumference of the first positioning groove. The heat exchange plate is clamped in the second positioning groove. That is, it is easily affected by the setting of the substrate, resulting in only one side of the heat exchange plate for heat transfer, that is, only heat transfer to one side of the air injection plate, and the heat transfer efficiency is poor and needs to be improved. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a microchannel reaction system for the above-mentioned existing technical problems, achieving the effect of improving the heat transfer efficiency of the heat transfer plate.

[0006] In view of this, the utility model provides a microchannel reaction system, including:

[0007] A plurality of microchannel reaction devices, which are provided for the reaction between two different materials;

[0008] A plurality of material supply tanks, which are connected to the inlet side of the microchannel reaction device and are used to transport a variety of different materials to the microchannel reaction device;

[0009] A collection device, which is connected to the outlet side of the microchannel reaction device, and is connected with a gas collection interface and a liquid collection interface, and a sampling interface is provided between the collection device and the microchannel reaction device;

[0010] Among them, the microchannel reaction device includes a plurality of reaction plate layers and heat exchange plate layers, and the plurality of reaction plate layers and heat exchange plate layers are arranged in an alternating and overlapping manner.

[0011] In the above technical solution, further, the microchannel reaction device further includes:

[0012] The first support plate is provided with a first inlet pipe communicating with the reaction plate layer and a second inlet pipe communicating with the heat exchange plate layer;

[0013] The second support plate is provided with a first outlet pipe communicating with the reaction plate layer and a second outlet pipe communicating with the heat exchange plate layer.

[0014] In the above technical solution, further:

[0015] A first through hole coaxially opened with the first inlet pipe and a second through hole coaxially opened with the first outlet pipe are provided in each of the plurality of reaction plate layers and heat exchange plate layers;

[0016] A third through hole communicating with the second inlet pipe and the second outlet pipe is provided in each of the plurality of reaction plate layers;

[0017] A first connecting pipe communicating with the first through hole and a second connecting pipe communicating with the second through hole are respectively provided in each of the plurality of heat exchange plate layers.

[0018] In the above technical solution, further:

[0019] A first groove is provided on the reaction plate layer, and the first groove and the surface of the adjacent heat exchange plate layer form a reaction flow channel for introducing two kinds of materials for reaction;

[0020] A second groove is provided in the heat exchange plate layer, and the second groove and the surface of the adjacent reaction plate layer form a heat exchange cavity corresponding to the reaction flow channel.

[0021] In the above technical solution, further:

[0022] A first sealing groove is provided on the reaction plate layer and is arranged around the reaction flow channel;

[0023] A second sealing groove is provided on the heat exchange plate layer and is arranged around the heat exchange cavity;

[0024] Wherein, sealing rings are arranged in both the first sealing groove and the second sealing groove.

[0025] In the above technical solution, further:

[0026] The reaction flow channel is in an S shape and includes a plurality of X-shaped pipelines having mixing nodes and a mixing section located between two adjacent X-shaped pipelines.

[0027] In the above technical solution, further:

[0028] A plurality of first wall grooves and second wall grooves are provided on the inner wall of the mixing section, and the first wall grooves and the second wall grooves are arranged alternately.

[0029] The beneficial effects of the present utility model are:

[0030] 1. By arranging the microchannel reaction device into multiple alternately overlapping reaction plate layers and heat exchange plate layers, with heat exchange plate layers on both sides of the reaction plate layers, the heat exchange efficiency and uniformity of the reaction plate layers can be effectively improved.

[0031] 2. Through the arrangement of the first through hole, the second through hole, the first connecting pipe, and the second connecting pipe, it is convenient to introduce materials into each reaction plate layer, and the opening of the third through hole is convenient to introduce heat exchange medium into each heat exchange plate layer, avoiding mutual interference between the two and affecting the reaction progress.

[0032] 3. By setting the reaction flow channel into an S shape, which includes multiple X-shaped pipelines with mixing nodes and a mixing section located between two X-shaped pipelines, the mixing effect of the two materials can be effectively improved, ensuring the reaction effect.

[0033] 4. By providing multiple first wall grooves and second wall grooves on the inner wall of the mixing section, small-scale eddies can be generated in the mixing section for the materials, further improving the mixing effect of the two materials and ensuring the reaction effect. Description of the Drawings

[0034] Figure 1 is a schematic structural view of the present utility model;

[0035] Figure 2 is a schematic structural view of the microchannel reaction device of the present utility model;

[0036] Figure 3 is a side view of the microchannel reaction device of the present utility model;

[0037] Figure 4 is the present utility model Figure 3 the sectional view taken along line A-A in;

[0038] Figure 5 is the present utility model Figure 3 the sectional view taken along line B-B in;

[0039] Figure 6 is the present utility model Figure 5 the enlarged view at C in;

[0040] The labels in the figure are shown as follows: 1. Microchannel reaction device; 100. Reaction plate layer; 101. Heat exchange plate layer; 102. First support plate; 103. First inlet pipe; 104. Second inlet pipe; 105. Second support plate; 106. First outlet pipe; 107. Second outlet pipe; 108. First through hole; 109. Second through hole; 110. Third through hole; 111. First connecting pipe; 112. Second connecting pipe; 113. First groove; 1130. X-shaped pipeline; 1131. Mixing section; 1132. First wall groove; 1133. Second wall groove; 114. Second groove; 115. First sealing groove; 116. Second sealing groove; 117. Sealing ring; 2. Material supply tank; 3. Collection device; 30. Gas collection interface; 31. Liquid collection interface; 32. Sampling interface. Detailed implementation mode

[0041] Next, the technical solutions in the embodiments of the present application will be clearly described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art belong to the scope of protection of the present application.

[0042] Embodiment 1:

[0043] This embodiment provides a microchannel reaction system, including:

[0044] A plurality of microchannel reaction devices 1, which are used for the reaction between two different materials;

[0045] Material supply tanks 2, which are connected to the inlet side of the microchannel reaction device 1 and are provided in plurality, and are used for transporting a variety of different materials to the microchannel reaction device 1;

[0046] A collection device 3, which is connected to the outlet side of the microchannel reaction device 1, and is connected with a gas collection interface 30 and a liquid collection interface 31, and a sampling interface 32 is provided between the collection device 3 and the microchannel reaction device 1;

[0047] Among them, the microchannel reaction device 1 includes a plurality of reaction plate layers 100 and heat exchange plate layers 101, and the plurality of reaction plate layers 100 and heat exchange plate layers 101 are alternately overlapped;

[0048] At the same time, it also includes a supply system for supplying heat exchange medium to the microchannel reaction device 1.

[0049] It can be seen from this embodiment that by setting the microchannel reaction device 1 as a plurality of alternately overlapped reaction plate layers 100 and heat exchange plate layers 101, both sides of the reaction plate layer 100 have heat exchange plate layers 101, which can effectively improve the heat exchange efficiency and heat exchange uniformity of the reaction plate layer 100;

[0050] Meanwhile, multiple microchannel reaction devices 1 are provided to facilitate the sequential reaction of multiple materials, improving continuity and efficiency;

[0051] The material supply tank 2 facilitates the supply of liquid or gaseous materials to the microchannel reaction device 1, while the collection device 3 facilitates the collection of reaction products, and the sampling interface 32 enables easy understanding and adjustment of the reaction progress.

[0052] Example 2:

[0053] This example provides a microchannel reaction system. In addition to including the technical solutions of the above example, it also has the following technical features. The microchannel reaction device 1 further includes:

[0054] The first support plate 102 is provided with a first inlet pipe 103 communicating with the reaction plate layer 100 and a second inlet pipe 104 communicating with the heat exchange plate layer 101;

[0055] The second support plate 105 is provided with a first outlet pipe 106 communicating with the reaction plate layer 100 and a second outlet pipe 107 communicating with the heat exchange plate layer 101;

[0056] Among them, both the first inlet pipe 103 and the first outlet pipe 106 are two, and the first support plate 102 and the second support plate 105 are fixedly connected by bolts and nuts to clamp and fix multiple reaction plate layers 100 and heat exchange plate layers 101.

[0057] It can be seen from this example that through the setting of the first inlet pipe 103 and the second inlet pipe 104, it is convenient to connect with the material supply tank 2 and the supply system of the heat exchange medium, facilitating the introduction of the material and the heat exchange medium.

[0058] Example 3:

[0059] This example provides a microchannel reaction system. In addition to including the technical solutions of the above example, it also has the following technical features:

[0060] In multiple reaction plate layers 100 and heat exchange plate layers 101, a first through hole 108 coaxial with the first inlet pipe 103 and a second through hole 109 coaxial with the first outlet pipe 106 are provided;

[0061] In multiple reaction plate layers 100, a third through hole 110 communicating with the second inlet pipe 104 and the second outlet pipe 107 is provided;

[0062] In multiple heat exchange plate layers 101, a first connecting pipe 111 communicating with the first through hole 108 and a second connecting pipe 112 communicating with the second through hole 109 are respectively provided;

[0063] Among them, the third through-hole 110 is not in internal communication with the reaction plate layer 100.

[0064] As can be seen from this embodiment, through the settings of the first through-hole 108, the second through-hole 109, the first connecting pipe 111, and the second connecting pipe 112, it is convenient to introduce materials into each reaction plate layer 100. The opening of the third through-hole 110 facilitates the introduction of the heat exchange medium into each heat exchange plate layer 101, avoiding mutual interference between the two and affecting the reaction progress.

[0065] Embodiment 4:

[0066] This embodiment provides a microchannel reaction system. In addition to including the technical solutions of the above embodiments, it also has the following technical features:

[0067] A first groove 113 is formed on the reaction plate layer 100, and the first groove 113 and the surface of the adjacent heat exchange plate layer 101 form a reaction flow channel for introducing two materials for reaction;

[0068] A second groove 114 is formed inside the heat exchange plate layer 101, and the second groove 114 and the surface of the adjacent reaction plate layer 100 form a heat exchange cavity corresponding to the reaction flow channel;

[0069] Among them, heat exchange fins can be selectively arranged on the inner wall of the heat exchange cavity to improve the heat exchange efficiency.

[0070] As can be seen from this embodiment, by forming the reaction flow channel by opening the first groove 113 on the reaction plate layer 100 and forming the heat exchange cavity by opening the second groove 114 inside the heat exchange plate layer 101, the convenience and processing efficiency of processing the reaction flow channel and the heat exchange cavity can be effectively improved through the machining of the first groove 113 and the second groove 114 by a milling machine, and the effect of quickly machining the complex shape of the reaction flow channel can be achieved;

[0071] At the same time, it cooperates with the adjacent heat exchange plate layer 101 or reaction plate layer 100 to form a closed chamber, which is convenient for cleaning after disassembly and improves the maintenance efficiency.

[0072] Embodiment 5:

[0073] This embodiment provides a microchannel reaction system. In addition to including the technical solutions of the above embodiments, it also has the following technical features:

[0074] A first sealing groove 115 is formed on the reaction plate layer 100 and is arranged around the reaction flow channel;

[0075] A second sealing groove 116 is formed on the heat exchange plate layer 101 and is arranged around the heat exchange cavity;

[0076] The first sealing groove 115 and the second sealing groove 116 are both provided with sealing rings 117 . The sealing rings 117 are made of rubber and their shapes are similar to the outer shapes of the reaction channel and the heat exchange cavity.

[0077] It can be seen from the present embodiment that the provision of the sealing ring 117 can improve the sealing performance between the reaction plate layer 100 and the heat exchange plate layer 101, thereby ensuring that a separate closed chamber is formed inside the two, and the provision of the first sealing groove 115 and the second sealing groove 116 facilitates the installation of the sealing ring 117, improves the installation accuracy of the sealing ring 117, and ensures the sealing effect.

[0078] Embodiment 6:

[0079] This embodiment provides a microchannel reaction system, which, in addition to the technical solutions of the above embodiments, also has the following technical features:

[0080] The reaction channel is S-shaped and includes a plurality of X-shaped pipelines 1130X having mixing nodes and a mixing section 1131 located between two adjacent X-shaped pipelines 1130X.

[0081] It can be seen from this embodiment that by setting the reaction channel into an S shape, and including a plurality of X-shaped pipelines 1130X with mixing nodes and a mixing section 1131 located between two X-shaped pipelines 1130X, the mixing effect of the two materials can be effectively improved and the reaction effect can be ensured;

[0082] In addition, the setting of multiple X-shaped pipelines 1130X can reduce the situation where materials cannot pass due to local blockage, so that when blockage occurs in the pipeline on one side of the X-shaped pipeline, the material can also flow to ensure the reaction, so that it can be cleaned and unblocked after the reaction is completed, effectively ensuring work efficiency.

[0083] Embodiment 7:

[0084] This embodiment provides a microchannel reaction system, which, in addition to the technical solutions of the above embodiments, also has the following technical features:

[0085] A plurality of first wall grooves 1132 and second wall grooves 1133 are formed on the inner wall of the mixing section 1131 , and the first wall grooves 1132 and the second wall grooves 1133 are alternately arranged.

[0086] It can be seen from this embodiment that by opening a plurality of first wall grooves 1132 and second wall grooves 1133 on the inner wall of the mixing section 1131, the material can generate a small-scale vortex in the mixing section 1131, further improving the mixing effect of the two materials and ensuring the reaction effect.

[0087] The embodiments of the present application have been described above in conjunction with the accompanying drawings. Without conflict, the embodiments and the features in the embodiments in the present application can be combined with each other. The present application is not limited to the above specific embodiments. The above specific embodiments are merely illustrative rather than restrictive. Under the inspiration of the present application, those of ordinary skill in the art can also make many forms without departing from the purpose of the present application and the scope protected by the claims, and all of them fall within the protection scope of the present application.

Claims

1. A microchannel reaction system, characterized in that: include: A microchannel reaction device (1), which is provided in plurality and is used for the reaction between two different materials; A material supply tank (2) is connected to the inlet side of the microchannel reaction device (1), and is provided in plurality, and is used to transport a variety of different materials to the microchannel reaction device (1); A collecting device (3) is connected to the outlet side of the microchannel reaction device (1) and is connected to a gas collecting interface (30) and a liquid collecting interface (31), and a sampling interface (32) is provided between the collecting device (3) and the microchannel reaction device (1); Wherein, the microchannel reaction device (1) comprises a plurality of reaction plate layers (100) and heat exchange plate layers (101), and the plurality of reaction plate layers (100) and heat exchange plate layers (101) are alternately arranged in an overlapping manner.

2. The microchannel reaction system according to claim 1, characterized in that: The microchannel reaction device (1) further comprises: The first support plate (102) is provided with a first inlet pipe (103) communicating with the reaction plate layer (100) and a second inlet pipe (104) communicating with the heat exchange plate layer (101); The second support plate (105) is provided with a first outlet pipe (106) communicating with the reaction plate layer (100) and a second outlet pipe (107) communicating with the heat exchange plate layer (101).

3. The microchannel reaction system according to claim 2, characterized in that: A first through hole (108) coaxially opened with the first inlet pipe (103) and a second through hole (109) coaxially opened with the first outlet pipe (106) are provided in each of the plurality of reaction plate layers (100) and the heat exchange plate layers (101); A third through hole (110) communicating with the second inlet pipe (104) and the second outlet pipe (107) is provided in each of the plurality of reaction plate layers (100); A first connecting pipe (111) communicating with the first through hole (108) and a second connecting pipe (112) communicating with the second through hole (109) are respectively provided in the plurality of heat exchange plate layers (101).

4. The microchannel reaction system according to claim 1, characterized in that: The reaction plate layer (100) is provided with a first groove (113), and the first groove (113) and the surface of the adjacent heat exchange plate layer (101) form a reaction channel for passing two materials to react; A second groove (114) is provided in the heat exchange plate layer (101), and the second groove (114) and the surface of the adjacent reaction plate layer (100) form a heat exchange cavity arranged corresponding to the reaction flow channel.

5. The microchannel reaction system according to claim 4, characterized in that: The reaction plate layer (100) is provided with a first sealing groove (115) arranged around the reaction channel; The heat exchange plate layer (101) is provided with a second sealing groove (116) arranged around the heat exchange cavity; Wherein, sealing rings (117) are provided in both the first sealing groove (115) and the second sealing groove (116).

6. The microchannel reaction system according to claim 4, characterized in that: The reaction channel is S-shaped and comprises a plurality of X-shaped pipelines (1130) having mixing nodes and a mixing section (1131) located between two adjacent X-shaped pipelines (1130).

7. The microchannel reaction system according to claim 6, characterized in that: A plurality of first wall grooves (1132) and second wall grooves (1133) are provided on the inner wall of the mixing section (1131), and the first wall grooves (1132) and the second wall grooves (1133) are arranged alternately.

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