Micro-channel reactor with high heat exchange efficiency

Abstract

The utility model relates to the technical field of micro-channel reactors, and discloses a micro-channel reactor with high heat exchange efficiency, which comprises a fixing frame, micro-channel reaction equipment is fixedly arranged on the inner surface of the fixing frame, and a heat dissipation mechanism is fixedly arranged on the outer surface of the micro-channel reaction equipment; the heat dissipation mechanism comprises a heat transfer assembly, the heat transfer assembly comprises a conduction box, a special-shaped flowing frame is fixedly installed on the inner surface of the conduction box, and a conduction plate is fixedly installed on the inner surface of the conduction box. According to the microchannel reactor with the high heat exchange efficiency, heat of microchannel reaction equipment is transferred to a conduction plate through a conduction box, a water pump injects cooling water in a circulation box into a water filling pipe through a water inlet pipe, and the cooling water in the water filling pipe enters the conduction box and flows in an S shape along a special-shaped flowing frame; in the flowing process, heat on the conduction plate is subjected to heat exchange, and then cooling water enters the circulation box again from the communicating pipe after heat exchange and is sprayed out by the spraying heads on the communicating pipe.

Description

Technical Field

[0001] This invention relates to the technical field of microchannel reactors, and more particularly to a microchannel reactor with high heat exchange efficiency. Background Technology

[0002] Microreactor technology, also known as microchemical technology, is a crucial development direction in modern chemical technology. Using microreactor technology, chemical engineers can develop new production processes, achieve precise control over reaction processes, obtain higher reaction yields and selectivity, and realize continuous and automated reaction processes. Simultaneously, microreactor technology eliminates the scale-up effect, allowing the optimal reaction conditions of pilot-scale processes to be directly applied to industrial production, thus significantly shortening process development time.

[0003] The most significant characteristic of microreactors is their highly efficient mixing and reaction. However, this high efficiency brings with it numerous challenges. For instance, in some reactions, the increased reaction rate can concentrate exothermic reactions, leading to localized overheating. In chemical reactions, temperature variations can trigger numerous side reactions, resulting in uncontrollable impurities. Therefore, heat transfer and dissipation in microreactors have always been critical issues that require resolution.

[0004] Patent CN217221427U discloses a parallel high-efficiency microreactor. This microreactor has a heat dissipation mechanism, including heat sinks, on one side of the reaction chamber to reduce the temperature of the chamber. The heat sink structure, positioned between the reaction chambers, absorbs heat from the outer wall of the chamber. Then, by removing the heat sinks, heat diffusion is accelerated, ensuring the reaction chambers can operate in a favorable temperature environment and improving reaction efficiency. However, this patent's method of absorbing heat through heat sinks and then removing them results in a lag between the heat release from the reaction and the heat dissipation from the absorption blocks. Furthermore, the need to continuously remove the heat sinks leads to low heat dissipation efficiency, resulting in a reduction in the heat exchange efficiency of the microchannel reactor. Utility Model Content

[0005] In view of the problems of existing microchannel reactor local heat dissipation devices having low heat dissipation efficiency and being welded to the microchannel reactor, making it impossible to arbitrarily install heat dissipation devices to follow abnormal heat dissipation points, this utility model is proposed.

[0006] Therefore, the purpose of this utility model is to provide a microchannel reactor with high heat exchange efficiency. Its purpose is to improve the heat dissipation effect of the microchannel reactor without affecting the heat exchange efficiency of the microchannel reaction equipment, and at the same time, the heat dissipation equipment can be quickly disassembled and installed.

[0007] To solve the above technical problems, the present invention provides the following technical solution: a microchannel reactor with high heat exchange efficiency, comprising a fixed frame, wherein a microchannel reaction device is fixedly installed on the inner surface of the fixed frame, and a heat dissipation mechanism is fixedly installed on the outer surface of the microchannel reaction device;

[0008] The heat dissipation mechanism includes a heat transfer component, which includes a conduction box. An irregularly shaped flow frame is fixedly installed on the inner surface of the conduction box, and a conduction plate is fixedly installed on the inner surface of the conduction box.

[0009] As a preferred embodiment of the high heat exchange efficiency microchannel reactor of this utility model, the heat dissipation mechanism further includes a circulating heat dissipation component, which includes a circulation tank. A water pump is fixedly installed on the inner surface of the circulation tank. The input end of the water pump is connected to a water inlet pipe, and the output end of the water pump is connected to a water filling pipe.

[0010] As a preferred embodiment of the high heat exchange efficiency microchannel reactor of this utility model, the outer surface of the circulation box is fixedly connected to the inner surface of the fixed frame, the left end of the water inlet pipe passes through the circulation box and extends into the interior of the circulation box, and the right end of the water injection pipe passes through the circulation box and extends to the outside of the circulation box and connects with the right side of the conduction box.

[0011] As a preferred embodiment of the high heat exchange efficiency microchannel reactor of this utility model, the circulating heat dissipation component further includes a connecting pipe, one end of which is connected to the right side of the conduction box, and the other end of which passes through the circulation box and extends into the interior of the circulation box.

[0012] As a preferred embodiment of the high heat exchange efficiency microchannel reactor of this utility model, the circulating heat dissipation assembly further includes a spray head, the top of which is fixedly connected to the bottom of the connecting pipe, a grid plate is fixedly installed on the inner wall of the circulation box, and a cooling fan is connected to the front of the circulation box.

[0013] As a preferred embodiment of the high heat exchange efficiency microchannel reactor of this utility model, wherein: a connecting mechanism is fixedly installed on the outer surface of the conduction box, the connecting mechanism includes connecting blocks, one side of each of the two connecting blocks is fixedly connected to the outer surface of the conduction box, a threaded rod is rotatably installed on the inner surface of the connecting block, and a threaded block is threadedly installed on the outer surface of the threaded rod.

[0014] As a preferred embodiment of the high heat exchange efficiency microchannel reactor of this utility model, the connecting mechanism further includes a nut, the inner surface of which is fixedly connected to the outer surface of the threaded rod.

[0015] Compared with the prior art, the present invention has at least the following beneficial effects:

[0016] 1. This utility model improves heat dissipation by adding a design to the microchannel reaction equipment. It achieves this by using a conduction box and irregular flow frame in conjunction with the conduction plate and microchannel reaction equipment, using a conduction box and water pump in conjunction with the water filling pipe and connecting pipe, using a water pump and water inlet pipe in conjunction with the circulation box and spray head, and using a spray head in conjunction with the grid plate and cooling fan. This allows for the rapid dissipation of abnormal temperatures in the microchannel reaction equipment, preventing heat buildup from affecting the heat exchange efficiency of the microchannel reactor.

[0017] 2. This utility model incorporates a design that allows for rapid installation and disassembly of the heat dissipation equipment for microchannel reactors. Through the coordinated use of the conduction box and connecting block with the threaded rod and threaded block, and the coordinated use of the threaded rod and threaded block with the nut, the conduction box used for heat dissipation is fixed to the microchannel reactor equipment, facilitating the maintenance and repair of the heat dissipation equipment for microchannel reactors. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the high heat exchange efficiency microchannel reactor of this utility model;

[0019] Figure 2 This invention relates to a microchannel reactor with high heat exchange efficiency. Figure 1 Schematic diagram of the enlarged structure of A in the middle;

[0020] Figure 3 This is a partial cross-sectional view of the heat transfer component of the high heat exchange efficiency microchannel reactor of this utility model.

[0021] Figure 4 This is a partial cross-sectional view of the circulating heat dissipation component of the high heat exchange efficiency microchannel reactor of this utility model.

[0022] Explanation of reference numerals in the attached figures:

[0023] 1. Fixing frame; 2. Microchannel reaction equipment; 3. Heat dissipation mechanism; 31. Heat transfer assembly; 311. Conduction box; 312. Irregularly shaped flow rack; 313. Conduction plate; 32. Circulating heat dissipation assembly; 321. Circulation box; 322. Water pump; 323. Water inlet pipe; 324. Water filling pipe; 325. Connecting pipe; 326. Spray head; 327. Mesh plate; 328. Cooling fan; 4. Connecting mechanism; 41. Connecting block; 42. Threaded rod; 43. Threaded block; 44. Nut. Detailed Implementation

[0024] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0025] Example 1

[0026] Reference Figures 1-3 This is the first embodiment of the present invention, which provides a microchannel reactor with high heat exchange efficiency. The microchannel reactor with high heat exchange efficiency includes a fixed frame 1, a microchannel reaction device 2 fixedly installed on the inner surface of the fixed frame 1, and a heat dissipation mechanism 3 fixedly installed on the outer surface of the microchannel reaction device 2.

[0027] The heat dissipation mechanism 3 includes a heat transfer component 31, which includes a conduction box 311. A shaped flow frame 312 is fixedly installed on the inner surface of the conduction box 311, and a conduction plate 313 is fixedly installed on the inner surface of the conduction box 311.

[0028] The heat dissipation mechanism 3 also includes a circulating heat dissipation component 32, which includes a circulating tank 321. A water pump 322 is fixedly installed on the inner surface of the circulating tank 321. The input end of the water pump 322 is connected to a water inlet pipe 323, and the output end of the water pump 322 is connected to a water filling pipe 324.

[0029] The outer surface of the circulation box 321 is fixedly connected to the inner surface of the fixing frame 1. The left end of the water inlet pipe 323 passes through the circulation box 321 and extends into the interior of the circulation box 321. The right end of the water filling pipe 324 passes through the circulation box 321 and extends to the outside of the circulation box 321, connecting with the right side of the conduction box 311.

[0030] The circulating heat dissipation assembly 32 also includes a connecting pipe 325, one end of which is connected to the right side of the conduction box 311, and the other end of which passes through the circulation box 321 and extends into the interior of the circulation box 321.

[0031] The circulating heat dissipation assembly 32 also includes a spray head 326, the top of which is fixedly connected to the bottom of the connecting pipe 325. A mesh plate 327 is fixedly installed on the inner wall of the circulating box 321, and a cooling fan 328 is connected to the front of the circulating box 321.

[0032] During operation, when the temperature of the microchannel reaction device 2 rises sharply, the heat it emits is first transferred to the conduction box 311, and then to the conduction plate 313. The water pump 322 injects the cooling water in the circulation box 321 into the water filling pipe 324 through the water inlet pipe 323. The cooling water in the water filling pipe 324 enters the conduction box 311 and flows in an S-shape along the irregular flow frame 312. During the flow, the heat on the conduction plate 313 is exchanged. After the heat exchange, the cooling water re-enters the circulation box 321 through the connecting pipe 325 and is sprayed out by the spray head 326 on the connecting pipe 325. The cooling water falls onto the grid plate 327 and flows on it. During the flow, the heat of the cooling water is dissipated and blown out by the cooling fan 328, and then it is collected again in the inner cavity of the circulation box 321, thereby dissipating the abnormal temperature on the microchannel reaction device 2.

[0033] Example 2

[0034] Reference Figures 1-4 This is the second embodiment of the present invention. The difference between this embodiment and the first embodiment is that a connecting mechanism 4 is fixedly installed on the outer surface of the conduction box 311. The connecting mechanism 4 includes a connecting block 41. The opposite sides of the two connecting blocks 41 are fixedly connected to the outer surface of the conduction box 311. A threaded rod 42 is rotatably installed on the inner surface of the connecting block 41. A threaded block 43 is threadedly installed on the outer surface of the threaded rod 42.

[0035] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a microchannel reactor with high heat exchange efficiency, including a connecting mechanism 4 and a nut 44, wherein the inner surface of the nut 44 is fixedly connected to the outer surface of the threaded rod 42.

[0036] During use, first attach the two conduction boxes 311 to the microchannel reaction device 2, then pass the threaded rod 42 through the connecting block 41 on the two conduction boxes 311, and tighten it with the threaded block 43 to fix the two conduction boxes 311 firmly on the microchannel reaction device 2.

[0037] The remaining structure is the same as that in Example 1.

[0038] Based on embodiments 1-2, the working principle of this utility model is as follows: The user first attaches the two conduction boxes 311 to the microchannel reaction device 2, then passes the threaded rod 42 through the connecting block 41 on the two conduction boxes 311 and tightens it with the threaded block 43, thus firmly fixing the two conduction boxes 311 to the microchannel reaction device 2. When the microchannel reaction device 2 starts working and its temperature rises sharply, the heat it emits is first transferred to the conduction boxes 311, and then transmitted to the conduction plate 313. The water pump 322 injects the cooling water in the circulation box 321 into the water filling pipe 324 through the water inlet pipe 323. Inside, the cooling water in the water filling pipe 324 enters the conduction box 311 and flows in an S-shape along the irregular flow frame 312. During the flow, the heat on the conduction plate 313 is exchanged. After the heat exchange, the cooling water re-enters the circulation box 321 through the connecting pipe 325 and is sprayed out by the spray head 326 on the connecting pipe 325. The cooling water falls onto the grid plate 327 and flows on it. During the flow, the heat of the cooling water is dissipated and blown out by the cooling fan 328. Then it is collected again in the inner cavity of the circulation box 321, thereby dissipating the abnormal temperature on the microchannel reaction device 2.

[0039] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A microchannel reactor with high heat exchange efficiency, comprising a fixing frame (1), characterized in that: The microchannel reaction device (2) is fixedly installed on the inner surface of the fixed frame (1), and the heat dissipation mechanism (3) is fixedly installed on the outer surface of the microchannel reaction device (2). The heat dissipation mechanism (3) includes a heat transfer component (31), which includes a conduction box (311). A shaped flow frame (312) is fixedly installed on the inner surface of the conduction box (311), and a conduction plate (313) is fixedly installed on the inner surface of the conduction box (311).

2. The high heat transfer efficiency microchannel reactor of claim 1, wherein: The heat dissipation mechanism (3) further includes a circulating heat dissipation component (32), which includes a circulation tank (321). A water pump (322) is fixedly installed on the inner surface of the circulation tank (321). The input end of the water pump (322) is connected to a water inlet pipe (323), and the output end of the water pump (322) is connected to a water filling pipe (324).

3. The high heat transfer efficiency microchannel reactor of claim 2, wherein: The outer surface of the circulation box (321) is fixedly connected to the inner surface of the fixing frame (1). The left end of the water inlet pipe (323) passes through the circulation box (321) and extends into the interior of the circulation box (321). The right end of the water filling pipe (324) passes through the circulation box (321) and extends to the outside of the circulation box (321) and connects with the right side of the conduction box (311).

4. The high heat transfer efficiency microchannel reactor of claim 2, wherein: The circulating heat dissipation assembly (32) also includes a connecting pipe (325), one end of which is connected to the right side of the conduction box (311), and the other end of which passes through the circulation box (321) and extends into the interior of the circulation box (321).

5. The high heat transfer efficiency microchannel reactor of claim 2, wherein: The circulating heat dissipation assembly (32) also includes a spray head (326), the top of which is fixedly connected to the bottom of the connecting pipe (325), a mesh plate (327) is fixedly installed on the inner wall of the circulating box (321), and a cooling fan (328) is connected to the front of the circulating box (321).

6. The high heat transfer efficiency microchannel reactor of claim 1, wherein: A connecting mechanism (4) is fixedly installed on the outer surface of the transmission box (311). The connecting mechanism (4) includes a connecting block (41). The two connecting blocks (41) are fixedly connected to the outer surface of the transmission box (311) on opposite sides. A threaded rod (42) is rotatably installed on the inner surface of the connecting block (41). A threaded block (43) is threadedly installed on the outer surface of the threaded rod (42).

7. The high heat transfer efficiency microchannel reactor of claim 6, wherein: The connecting mechanism (4) also includes a nut (44), the inner surface of which is fixedly connected to the outer surface of the threaded rod (42).

Images