Laminated microchannel reactor

Abstract

The utility model relates to the technical field of microchannel reactors, and discloses a laminated microchannel reactor which comprises a top plate, a bottom plate and a plurality of reaction plates, the reaction plates are laminated between the top plate and the bottom plate, each reaction plate is provided with a channel, and a water outlet bin and a water inlet bin are fixedly mounted between the top plate and the bottom plate. The water outlet bin is communicated with outlets of all the channels, water discharged from the channels is converged through the water outlet bin and then discharged from the water outlet pipe, flow of the water flowing from the water outlet pipe and the water inlet pipe is limited through flow valves on the water outlet pipe and the water inlet pipe, and the water outlet bin is separated through a first partition plate. Water discharged from the channels can be discharged only by gradually overflowing the first partition plate, after the water overflows the first partition plate, the flowing stroke of the water converged from any channel into the water outlet bin is consistent, and then after the flow speed of water flow in the water outlet pipe and the water inlet pipe is controlled through the flow valve, the flow speed in each channel can be controlled to be consistent.

Description

Technical Field

[0001] The utility model relates to the technical field of microchannel reactors, in particular to a stacked microchannel reactor. Background Art

[0002] Microreactors, also known as microchannel reactors, are microreactors with characteristic dimensions between 10 and 300 microns (or 1000 microns) manufactured using precision machining technology. They are used in many fields and play a huge role in the chemical industry. The flow rate in each microchannel in the microchannel reactors on the market cannot be controlled, resulting in different reaction rates in each channel, affecting the reaction quality and efficiency.

[0003] The existing Chinese patent CN214051582U discloses a stacked microchannel reactor with uniform channel flow rate. The stacked microchannel reactor with uniform channel flow rate can adjust the entry speed of the reaction liquid through the electromagnetic valves installed at the reaction inlet and the reaction outlet to ensure the same reaction rate in each channel.

[0004] However, the channels in the stacked microchannel reactor are stacked up and down, so the distance between each layer of channels and the reaction outlet is different. Simply adjusting the flow rate at the reactor inlet and outlet cannot ensure that the flow rate of each layer of channels is consistent. Utility Model Content

[0005] The purpose of the utility model is to provide a stacked microchannel reactor to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a stacked microchannel reactor, comprising a top plate, a bottom plate, and a reaction plate, wherein a plurality of reaction plates are provided and are stacked between the top plate and the bottom plate, a channel is opened on the reaction plate, a water outlet bin and a water inlet bin are fixedly installed between the top plate and the bottom plate, the water outlet bin is connected to the outlets of all channels, the water inlet bin is connected to the inlets of all channels, a water outlet pipe is provided on the front of the water outlet bin, a water inlet pipe is provided on the front of the water inlet bin, a partition plate 1 is fixedly installed on the inner wall of the water outlet bin, the bottom and left and right side surfaces of the partition plate 1 are fixedly connected to the inner wall of the water outlet bin, the upper surface of the partition plate 1 is higher than the uppermost channel, a gap is left between the top of the partition plate 1 and the top inner wall of the water outlet bin, and flow valves are provided at the ends of the water outlet pipe and the water inlet pipe.

[0007] Furthermore, a partition plate 2 is fixedly installed on the inner wall of the water inlet bin, and the bottom and left and right outer walls of the partition plate 2 are fixedly connected to the inner wall of the water inlet bin. A gap is left between the top of the partition plate 2 and the top inner wall of the water inlet bin, and a guide plate 1 is fixedly installed on the back side of the partition plate 2, and the guide plate 1 is inclined toward the channel.

[0008] Furthermore, a plurality of guide plates 1 are provided and correspond one to one with the reaction plates, and a guide plate 2 is fixedly installed on the back of the partition plate 2, and the guide plate 2 faces the channel of the lowest layer.

[0009] Furthermore, a drainage hole is provided at the bottom of the water outlet bin, and the drainage hole is located behind the partition plate 1. A sealing plug is clamped inside the drainage hole.

[0010] Furthermore, a protective cover is movably provided between the top plate and the bottom plate, the protective cover is movably provided outside the reaction plate, a shock-absorbing pad 1 is provided between the protective cover and the reaction plate, a baffle is clamped between the water outlet bin and the water inlet bin, and a shock-absorbing pad 2 is provided between the baffle and the reaction plate.

[0011] Furthermore, a screw is fixedly installed at the bottom of the top plate, and positioning holes corresponding to the bottom plate are opened on the bottom plate and the reaction plate, and the bottom plate is fixedly connected to the screw by countersunk screws.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The water discharged from the channel is converged through the water outlet bin and then discharged from the water outlet pipe. The flow valves on the water outlet pipe and the water inlet pipe are used to limit the flow of water flowing from the water outlet pipe and the water inlet pipe. The water outlet bin is separated by a partition plate 1, so that the water discharged from the channel needs to gradually overflow the partition plate 1 before it can be discharged. When the water overflows the partition plate 1, the water converged from any channel enters the water outlet bin with the same flow path. Then, when the flow rate of the water in the water outlet pipe and the water inlet pipe is controlled by the flow valve, the flow rate in each channel can be controlled to be consistent;

[0014] 2. Set up partition 2 to separate the water inlet bin, so that the water entering the water inlet bin will be mixed first, then flow over partition 2 to a guide plate, and finally be guided into the channel by guide plate 1. When the water inlet bin is full of water, it can ensure that the water flow entering each channel is consistent. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the utility model;

[0016] Figure 2 For this utility model Figure 1 Structural diagram of exploded view;

[0017] Figure 3 It is a structural schematic diagram of the water outlet bin and the water inlet bin of the utility model;

[0018] Figure 4 It is a structural schematic diagram of a right side cross-sectional view of the water outlet bin of the utility model;

[0019] Figure 5 It is a structural schematic diagram of a right side sectional view of the water inlet bin of the utility model.

[0020] In the figure: 1. top plate; 2. bottom plate; 3. reaction plate; 4. channel; 5. water outlet bin; 6. water inlet bin; 7. water outlet pipe; 8. water inlet pipe; 9. screw; 10. positioning hole; 11. countersunk screw; 12. protective cover; 13. baffle plate; 14. shock-absorbing pad 1; 15. shock-absorbing pad 2; 16. partition 1; 17. drainage hole; 18. sealing plug; 19. guide plate 1; 20. partition 2; 21. guide plate 2. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0022] See also Figure 1-Figure 5 The utility model provides a technical solution: a stacked microchannel reactor, comprising a top plate 1, a bottom plate 2, and a reaction plate 3, wherein a plurality of reaction plates 3 are provided and stacked between the top plate 1 and the bottom plate 2, a channel 4 is opened on the reaction plate 3, a water outlet bin 5 and a water inlet bin 6 are fixedly installed between the top plate 1 and the bottom plate 2, the water outlet bin 5 is connected to the outlets of all the channels 4, the water inlet bin 6 is connected to the inlets of all the channels 4, a water outlet pipe 7 is provided on the front of the water outlet bin 5, a water inlet pipe 8 is provided on the front of the water inlet bin 6, a partition 16 is fixedly installed on the inner wall of the water outlet bin 5, the bottom and left and right side surfaces of the partition 16 are fixedly connected to the inner wall of the water outlet bin 5, and the upper surface of the partition 16 is higher than the uppermost channel 4 , a gap is left between the top of the partition 16 and the top inner wall of the water outlet bin 5, and flow valves are provided at the ends of the water outlet pipe 7 and the water inlet pipe 8. The water discharged from the channel 4 is converged through the water outlet bin 5 and then discharged from the water outlet pipe 7. The flow valves on the water outlet pipe 7 and the water inlet pipe 8 are used to limit the flow of water flowing from the water outlet pipe 7 and the water inlet pipe 8. The water outlet bin 5 is separated by the partition 16, so that the water discharged from the channel 4 needs to gradually overflow the partition 16 before it can be discharged. When the water overflows the partition 16, the water converged from any channel 4 enters the water outlet bin 5 with a consistent flow stroke, and then when the flow rate of the water in the water outlet pipe 7 and the water inlet pipe 8 is controlled by the flow valve, the flow rate in each channel 4 can be controlled to be consistent;

[0023] The inner wall of the water inlet bin 6 is fixedly installed with a partition plate 20, the bottom and the left and right outer walls of the partition plate 20 are fixedly connected to the inner wall of the water inlet bin 6, the top of the partition plate 20 and the top inner wall of the water inlet bin 6 leave a gap, and the back of the partition plate 20 is fixedly installed with a guide plate 19, the guide plate 19 is inclined toward the channel 4, and the partition plate 20 is set to separate the water inlet bin 6, so that the water entering the water inlet bin 6 will be mixed first, and then overflow the partition plate 20 and flow to the guide plate 19, and finally be guided to the channel 4 by the guide plate 19. When the water inlet bin 6 is full of water, it can ensure that the water flow entering each channel 4 is consistent;

[0024] There are multiple guide plates 19, which correspond to the reaction plates 3 one by one. When the water flow is small and the water inlet tank 6 is not filled, the water is diverted to each channel 4. The back of the partition plate 20 is fixed with a guide plate 21, which faces the channel 4 at the bottom layer to ensure that all the water overflowing the partition plate 20 can be diverted to the channel 4.

[0025] A drainage hole 17 is provided at the bottom of the water outlet bin 5, and the drainage hole 17 is located behind the partition 16. A sealing plug 18 is clamped inside the drainage hole 17. The drainage hole 17 is provided to discharge the residual water in the water outlet bin 5 after the reaction is completed.

[0026] A protective cover 12 is movably provided between the top plate 1 and the bottom plate 2, the protective cover 12 is movably sleeved outside the reaction plate 3, a shock-absorbing pad 14 is provided between the protective cover 12 and the reaction plate 3, a shielding plate 13 is clamped between the water outlet bin 5 and the water inlet bin 6, a shock-absorbing pad 2 15 is provided between the shielding plate 13 and the reaction plate 3, the protective cover 12 and the shielding plate 13 are provided to protect the reaction plate 3, and the shock-absorbing pad 14 and the shock-absorbing pad 2 15 are provided to reduce the impact of the external force colliding with the protective cover 12 and the shielding plate 13 on the reaction plate 3;

[0027] A screw 9 is fixedly installed at the bottom of the top plate 1, and positioning holes 10 corresponding to the bottom plate 2 are opened on the bottom plate 2 and the reaction plate 3. The bottom plate 2 is fixedly connected to the screw 9 by countersunk screws 11, so that the top plate 1, the bottom plate 2, and the reaction plate 3 are detachable.

[0028] Working principle: When in use, water is passed from the water inlet pipe 8 into the water inlet bin 6, and the water flow rate is adjusted by the flow valves on the water outlet pipe 7 and the water inlet pipe 8. After entering the water inlet bin 6, the water needs to overflow the partition 20, and after overflowing the partition 20, it is guided to the channel 4 by the guide plate 19 and the guide plate 21. After reacting in the channel 4, it enters the water outlet bin 5. When the water in the water outlet bin 5 overflows the partition 16, it is discharged from the water outlet pipe 7.

[0029] Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present utility model.

Claims

1. A stacked microchannel reactor, comprising a top plate (1), a bottom plate (2), and a reaction plate (3), characterized in that: The reaction plates (3) are provided in plurality and are stacked between the top plate (1) and the bottom plate (2). A channel (4) is provided on the reaction plates (3). A water outlet bin (5) and a water inlet bin (6) are fixedly installed between the top plate (1) and the bottom plate (2). The water outlet bin (5) is connected to the outlets of all the channels (4), and the water inlet bin (6) is connected to the inlets of all the channels (4). A water outlet pipe (7) is provided on the front of the water outlet bin (5). The front side of the water outlet bin (6) is connected to a water inlet pipe (8), the inner wall of the water outlet bin (5) is fixedly mounted with a partition plate (16), the bottom and left and right side surfaces of the partition plate (16) are fixedly connected to the inner wall of the water outlet bin (5), the upper surface of the partition plate (16) is higher than the uppermost channel (4), a gap is left between the top of the partition plate (16) and the top inner wall of the water outlet bin (5), and flow valves are provided at the ends of the water outlet pipe (7) and the water inlet pipe (8).

2. A stacked microchannel reactor according to claim 1, characterized in that: The inner wall of the water inlet bin (6) is fixedly mounted with a partition plate 2 (20); the bottom and the left and right outer walls of the partition plate 2 (20) are fixedly connected to the inner wall of the water inlet bin (6); a gap is left between the top of the partition plate 2 (20) and the top inner wall of the water inlet bin (6); the back of the partition plate 2 (20) is fixedly mounted with a guide plate 1 (19); the guide plate 1 (19) is inclined toward the channel (4).

3. A stacked microchannel reactor according to claim 2, characterized in that: The guide plate 1 (19) is provided in plurality and corresponds one to one with the reaction plates (3); the back of the partition plate 2 (20) is fixedly mounted with a guide plate 2 (21), and the guide plate 2 (21) faces the channel (4) at the bottom layer.

4. A stacked microchannel reactor according to claim 1, characterized in that: A drainage hole (17) is provided at the bottom of the water outlet bin (5), and the drainage hole (17) is located behind the partition plate (16). A sealing plug (18) is clamped inside the drainage hole (17).

5. A stacked microchannel reactor according to claim 1, characterized in that: A protective cover (12) is movably arranged between the top plate (1) and the bottom plate (2); the protective cover (12) is movably arranged outside the reaction plate (3); a first shock-absorbing pad (14) is arranged between the protective cover (12) and the reaction plate (3); a shielding plate (13) is clamped between the water outlet bin (5) and the water inlet bin (6); and a second shock-absorbing pad (15) is arranged between the shielding plate (13) and the reaction plate (3).

6. A stacked microchannel reactor according to claim 1, characterized in that: A screw post (9) is fixedly mounted on the bottom of the top plate (1); positioning holes (10) corresponding to the bottom plate (2) are provided on the bottom plate (2) and the reaction plate (3); and the bottom plate (2) is fixedly connected to the screw post (9) by countersunk screws (11).

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