Microbial sewage treatment microchannel reaction device

Abstract

The present application relates to the technical field of reaction equipment, in particular to a micro-channel reaction device for microbial wastewater treatment, which comprises a shell, a material inlet, a material outlet, a channel connecting structure, a reaction channel and a porous carrier straight rib. The shell is in the shape of a cylinder, and all other structures are contained in the shell. One end of the shell is provided with the material inlet, and the other end is provided with the material outlet. The channel connecting structure is arranged at the material inlet and the material outlet, and can be connected with another micro-channel to lengthen or change the overall shape of the channel to adapt to different working environments. The reaction channel is located inside the shell. One micro-channel reaction structure contains 21 reaction channels and realizes uniform distribution. The porous carrier straight rib is located in the reaction channel. The porous carrier straight rib is in a hollow shape, densely filled with circular pores and in a concentric position with the reaction channel, and is connected with the corner of the reaction channel to realize a suspended state in the channel. The present application increases the pores on the traditional straight rib, which not only retains all the functions of the traditional straight rib, but also greatly increases the attachment area of microorganisms. By sufficiently expanding the internal surface space of the reaction channel, the situation that the microorganisms cannot be contacted at the central position of the fluid is avoided. The contact wall surface area per unit liquid holding capacity is increased, and the turbulence effect is increased, which is beneficial to the improvement of the efficiency of microbial wastewater treatment.

Description

Technical Field

[0001] This invention relates to the field of reaction equipment technology, specifically a microchannel reaction device for microbial wastewater treatment. Background Technology

[0002] Several commercial microchannel reactors exist, but most are planar, such as the classic heart-shaped, zigzag, and umbrella-shaped channels. While these channels have relatively low pressure drops, their mass transfer is weak; the fluid-wall contact area remains constant, limiting their efficiency improvement; and planar reactor channels are restricted to two-dimensional arrangement.

[0003] Therefore, there is a need to develop a microchannel reaction device with good mass transfer performance, a larger contact area between the channel and the fluid, and more application scenarios. Summary of the Invention

[0004] Therefore, the present invention was made in view of the above problems. By adding a straight rib in the reaction channel, adopting a 90° corner design at the end of the channel, and adding a channel connection structure between the material inlet and the material outlet, the problem of insufficient contact area and limited application scenarios in the existing system is solved.

[0005] This invention achieves the above-mentioned objective through the following technical solution: a microchannel reaction device for microbial wastewater treatment, comprising: a shell, a material inlet, a material outlet, a channel connecting structure, a reaction channel, and porous carrier ribs. The shell is cylindrical with a diameter of 16 mm and a length of 100 mm, encompassing all other structures. One end of the shell has a material inlet, and the other end has a material outlet. The channel connecting structure is located at the material inlet and outlet, and can be connected to another microchannel to lengthen or change the overall shape of the channel to adapt to different working environments. The reaction channel is located inside the shell; one microchannel reaction device contains 21 reaction channels with a diameter of 2 mm, evenly distributed. The porous carrier ribs are located inside the reaction channel, with a diameter of 0.6 mm and a wall thickness of 0.1 mm, and are concentric with the reaction channel, connecting to the corners of the reaction channel to achieve a suspended state within the channel.

[0006] Preferably, the outer casing has a 90° corner design at its ends. There are three types of corner orientations: one is in the same direction, one is in opposite directions, and one is at a 90° angle.

[0007] Preferably, the material inlet and material outlet are provided with a channel connection structure, which is precisely fitted with another microchannel and fixed by 4 screws.

[0008] Preferably, the reaction channel has a circular cross-section, with a total of 21 channels evenly distributed within the microchannel.

[0009] Preferably, a porous carrier rib is added to the reaction channel. The porous design is added to the traditional rib, which not only retains all the functions of the traditional rib, but also greatly increases the attachment area of ​​microorganisms and improves the mass transfer effect of the channel. The connection between the two ends of the rib and the wall at the 90° corner solves the problem of the porous carrier rib being suspended.

[0010] The beneficial effects are as follows: By adding a porous carrier rib inside the circular cross-section reaction channel, the present invention greatly increases the contact area and mass transfer effect between microorganisms and fluids during wastewater treatment. The 90° corner designed at the end of the channel enhances the turbulence of the fluid inside the channel, making the distribution of pollutants in the fluid more balanced. Not only is the pressure drop in the flow channel greatly reduced, but the efficiency of microbial wastewater treatment is also greatly enhanced, effectively solving the current problems of reaction channels.

[0011] This invention achieves morphological changes of the microchannel structure in three-dimensional space by designing a 90° corner at the end of the channel and adding a channel connection structure at the material inlet and material outlet. The structure is more complex and versatile, and is also applicable to more complex situations. Compared with two-dimensional flat channel, it has a wider range of applications and a brighter development prospect. Attached Figure Description

[0012] Figure 1 is a schematic diagram of the outer casing of the present invention.

[0013] Figure 2 is a schematic diagram of the material inlet of the present invention.

[0014] Figure 3 is a schematic diagram of the material outlet of the present invention.

[0015] Figure 4 is a schematic diagram of the reaction channel of the present invention.

[0016] Figure 5 is a schematic diagram of the channel connection structure of the present invention.

[0017] Figure 6 is a schematic diagram of the porous carrier straight rib of the present invention.

[0018] Figure 7 is a schematic diagram of the overall structure of the unidirectional microchannel of the present invention.

[0019] Figure 8 is a schematic diagram of the overall structure of the microchannel in the 90° direction of the present invention.

[0020] Figure 9 is a schematic diagram of the overall structure of the anisotropic microchannel of the present invention.

[0021] Figure 10 is a schematic diagram of the connection between the straight rib and the wall at the 90° corner of the present invention.

[0022] Figure 11 is a schematic diagram of the overall shape of the channel connection of the present invention. Implementation

[0023] Preferred embodiments of the invention will be described in detail with reference to the accompanying drawings, which will facilitate their implementation by those skilled in the art. However, the invention can be implemented in various different forms, and therefore is not limited to the embodiments described below; furthermore, for clarity in describing the invention and to show the location of each component, non-described components are shown in wireframe diagrams.

[0024] As shown in Figures 1-6, a microchannel reaction device for microbial wastewater treatment includes: a shell 1, a material inlet 2, a material outlet 3, a channel connection structure 4, a reaction channel 5, and porous carrier ribs 6.

[0025] The outer casing 1 is cylindrical, similar to common pipe shapes, making it simple and aesthetically pleasing to manufacture. It features a 90° bend at the end, designed to enhance fluid turbulence and promote a more even distribution of contaminants within the fluid. Because it is a circular pipe, this is equivalent to rounding the corners, ensuring good system stability.

[0026] The reactants flow into the reaction channel through material inlet 2, are processed, and then flow out through material outlet 3.

[0027] The channel connection structure 4 is set at the material inlet 2 and the material outlet 3, and is fixed by 4 screws after being precisely fitted with another microchannel.

[0028] Compared to several commercially available microchannel reaction devices, the reaction channel 1 has a circular cross-section, and the porous carrier ribs 6 inside reduce the volume of the reaction channel 5 slightly. However, compared to the increased contact area, the advantages are obviously greater than the disadvantages. This is more conducive to the attachment, growth and reproduction of microorganisms in the microchannel, and increases the contact area with the fluid.

[0029] Compared to two-dimensional flat channels, our outer shell 1 with a 90° corner design at the end allows the microchannel structure to change its shape in three-dimensional space. The structure is more complex and versatile, and it is also suitable for more complex situations, with a wider range of applications and a brighter future.

[0030] As shown in Figure 7-9, there are three types of orientations for the 90° corner at the end of the channel: one is in the same direction (7), one is in opposite directions (8), and one is at a 90° angle (9).

[0031] As shown in Figure 10, the porous carrier rib 6 is connected to the 90° corner of the reaction channel 5, which solves the problem of fixing the porous carrier rib 6 in a suspended state.

[0032] As shown in Figure 11, the overall shape diagram of the channel connection makes the channel a three-dimensional structure, which is more convenient to meet the conditions required for research.

[0033] The working principle of this invention is as follows: First, a suitable pipeline pathway is constructed using three microchannels with different orientations at 90° bends, based on the actual operating environment. This pathway is fixed by the channel connection structure 4. Wastewater flows in through the material inlet 2, passing through the 90° bends to enhance fluid turbulence and ensure more uniform distribution of pollutants in the water. It then enters the reaction channel 5 and undergoes a series of chemical reactions with microorganisms attached to the wall and the porous carrier ribs before flowing out through the material outlet 3. The entire process is then complete.

Claims

1. A microchannel reaction device for microbial wastewater treatment, comprising: The microchannel device comprises: a shell (1), a material inlet (2), a material outlet (3), a channel connection structure (4), a reaction channel (5), and a porous carrier rib (6). The shell (1) is cylindrical and contains all other structures. One end of the shell (1) has a material inlet (2), and the other end has a material outlet (3). The channel connection structure (4) is located at the material inlet (2) and the material outlet (3) and can be connected to another microchannel reaction device to lengthen or change the overall shape of the channel to adapt to different working environments. The reaction channel (5) is located inside the shell. A microchannel reaction device contains 21 reaction channels (5) and is evenly distributed. The porous carrier rib (6) is located inside the reaction channel (5). It is hollow and densely covered with circular pores for microbial attachment. It is concentric with the reaction channel (5) and connected to the corner of the reaction channel (5) to achieve a suspended state inside the channel.

2. The microchannel reaction device for microbial wastewater treatment according to claim 1, characterized in that: The outer shell (1) has a 90° corner shape at the end, which can enhance the disturbance of the fluid in the channel and make the distribution of pollutants in the fluid more even.

3. The microchannel reaction device for microbial wastewater treatment according to claim 1, characterized in that: The material inlet (2) and material outlet (3) are oriented in three ways: in the same direction, in opposite directions, and at a 90° angle.

4. The microchannel reaction device for microbial wastewater treatment according to claim 1, characterized in that: The channel connection structure (4) is set at the material inlet (2) and the material outlet (3), and is fixed by four screws after being precisely fitted with another microchannel reaction device.

5. A microchannel reaction device for microbial wastewater treatment according to claim 1, characterized in that: The reaction channel (5) has a circular cross-section with a diameter of 2 mm, which is more conducive to the attachment, growth and reproduction of microorganisms in the microchannel and increases the contact area with the fluid.

6. The microchannel reaction device for microbial wastewater treatment according to claim 1, characterized in that: The porous carrier straight rib (6) adds a porous design to the traditional straight rib, which not only plays a role in turbulence after the fluid enters the reaction channel (5), but its porous design can also greatly increase the attachment and reproduction of microorganisms, thereby greatly improving the wastewater treatment efficiency.

7. A microchannel reaction device for microbial wastewater treatment according to claim 6, characterized in that: The porous carrier rib (6) is connected to the wall at the 90° corner of the reaction channel (5), which solves the problem of fixing the porous carrier rib (6) in a suspended state.

Images