Gas-liquid nanoreactor

Abstract

The utility model relates to the field of gas-liquid mixing, in particular to a gas-liquid nano-reactor, which solves the problem of low reaction efficiency of substances with slower gas-liquid reaction, utilizes a mixing cavity to generate a cavitation effect so as to enable gas and liquid to reach nanoscale, increases the gas-liquid contact area and increases the reaction efficiency, and mainly comprises a columnar reactor body, the reactor body is provided with a plurality of mixing cavities which are sequentially communicated along the axis direction; the mixing cavity is sequentially divided into a converging section and a diffusing section in the flow direction of fluid, the converging section is a first conical cavity with the inner diameter gradually reduced in the flow direction of the fluid, and a plurality of vortex-shaped flow guide grooves converging towards the center are formed in the inner wall of the converging section; the diffusion section is a second conical cavity with the inner diameter gradually enlarged in the flow direction of the fluid, and the second conical cavity is communicated with the first conical cavity.

Description

Technical Field

[0001] This utility model relates to the field of gas-liquid mixing, and in particular to a gas-liquid nanoreactor. Background Technology

[0002] As is well known, gas-liquid mass transfer is a very common technique in fields such as chemical production. The purpose of gas-liquid mass transfer is to absorb gas in a liquid or desorb gas in a liquid. From the perspective of mass transfer, the most direct way to increase the rate of gas-liquid reaction is to increase the total contact area between gas and liquid, such as the gas-liquid mixing reactor disclosed in utility model patent CN217410737U, which mixes liquid and gas through microchannels to facilitate the reaction.

[0003] However, some gas-liquid reactions are slow, such as wastewater oxidation to remove COD (describe what gas and liquid phase reactions are slow). Using only the existing gas-liquid mixing reactor, the gas-liquid reaction is still inefficient and the reaction is incomplete. Therefore, it is necessary to further increase the gas-liquid contact area. Utility Model Content

[0004] This invention provides a gas-liquid nanoreactor that solves the problem of low reaction efficiency in substances with slow gas-liquid reactions. It utilizes the cavitation effect generated by the mixing chamber to bring the gas and liquid to the nanoscale, thereby increasing the gas-liquid contact area and improving the reaction efficiency.

[0005] This utility model is achieved through the following technical solution:

[0006] A gas-liquid nanoreactor includes a columnar reactor body, wherein the reactor body is provided with a plurality of sequentially connected mixing chambers along an axial direction.

[0007] The mixing chamber is divided into a converging section and a diffusion section along the fluid flow direction. The converging section is a first conical cavity whose inner diameter gradually decreases along the fluid flow direction. The inner wall of the converging section is provided with multiple guide grooves that converge towards the center in a vortex shape.

[0008] The diffusion section is a second conical cavity whose inner diameter gradually increases along the fluid flow direction, and the second conical cavity is connected to the first conical cavity.

[0009] Furthermore, adjacent mixing chambers are connected by a transition chamber, the inner wall of which is cylindrical.

[0010] Furthermore, the front end of the reactor body is provided with a front end cover, and the front end cover is connected to an air inlet pipe and a liquid inlet pipe;

[0011] The reactor body is provided with a rear end cover at the rear end, and the rear end cover is provided with a mixed fluid outlet pipe.

[0012] Furthermore, the number of the flow channels is 5-7.

[0013] Furthermore, the number of mixing chambers is 5-9.

[0014] Furthermore, the reactor body is made of 316L stainless steel, alloy silicon carbide, special ceramics, or special PTFE materials.

[0015] The beneficial effects achieved by this utility model compared with the prior art are as follows:

[0016] 1. The gas-liquid nanoreactor of this utility model has multiple sequentially connected mixing chambers arranged along the axial direction of the reactor body. The mixing chambers are divided into a collection section and a diffusion section along the fluid flow direction.

[0017] When gas and liquid flow together sequentially through each mixing chamber, the ultra-high flow rate of the fluid causes the gas and liquid in the fluid to generate a cavitation effect, thereby making the gas and liquid reach the nanoscale, invisible to the naked eye. The gas and liquid form a huge contact area, increasing the reaction efficiency between gas and liquid.

[0018] 2. The inner wall of the collecting section is provided with multiple guide channels that converge towards the center in a vortex shape, which can guide a part of the fluid and generate swirling flow. When the fluid passes through the junction of the collecting section and the diffusion section, the cavitation effect reaches the nanoscale, thereby increasing the gas-liquid contact area and increasing the reaction efficiency.

[0019] 3. The number of mixing chambers is 5-9, distributed along the axis of the reactor body, which enables gas and liquid to be mixed multiple times, greatly extending the contact time and improving the reaction efficiency. Attached Figure Description

[0020] Figure 1 This is a three-dimensional schematic diagram of the gas-liquid nanoreactor described in this utility model;

[0021] Figure 2 This is a schematic diagram of the interior of the gas-liquid nanoreactor described in this utility model;

[0022] Figure 3 for Figure 2 Sectional view of AA;

[0023] In the diagram: 1. Reactor body, 2. Transition chamber, 3. Collection section, 4. Diffusion section, 5. Guide channel, 6. Front cover, 7. Air inlet pipe, 8. Liquid inlet pipe, 9. Rear cover, 10. Mixed fluid outlet pipe. Detailed Implementation

[0024] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0025] In the description of the utility model, it should be understood that the terms "front", "rear", "up", "down", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the utility model.

[0026] like Figure 1-3 As shown, this example discloses a gas-liquid nanoreactor, mainly comprising a reactor body 1, a front end cover 6, and a rear end cover 9. The reactor body 1 is made of 316L stainless steel, silicon carbide alloy, special ceramics, or special PTFE materials, and has an overall cylindrical structure. Five sequentially connected mixing chambers are arranged along the axial direction of the reactor body 1. Adjacent mixing chambers are connected by transition chambers 2, the inner wall of which is cylindrical.

[0027] The mixing chamber is divided into a converging section 3 and a diffuser section 4 along the fluid flow direction (defined as the direction from front to back of the reactor body 1). The converging section 3 is a first conical cavity whose inner diameter gradually decreases along the fluid flow direction. Five guide channels 5 are machined on the inner wall of the converging section 3, converging towards the center in a vortex-like pattern. When the fluid passes through the guide channels 5 and converges towards the center, it forms a swirling flow. The diffuser section 4 is a second conical cavity whose inner diameter gradually increases along the fluid flow direction, and the second conical cavity is connected to the first conical cavity.

[0028] A front cover 6 is installed at the front end of the reactor body 1, and two air inlet pipes 7 and one liquid inlet pipe 8 are connected to the front cover 6. A rear cover 9 is installed at the rear end of the reactor body 1, and a mixed fluid outlet pipe 10 is installed on the rear cover 9.

[0029] In wastewater oxidation for COD removal, to increase the gas-liquid processing capacity, the gas-liquid nanoreactor described in this embodiment is typically constructed by arraying several reactor bodies 1 with supports. The liquid and gas to be reacted enter the inlet pipe 7 and liquid inlet pipe 8 of each reactor body 1 through transport pipes. When the gas and liquid flow sequentially through the mixing chambers, they pass through the collecting section 3 and the diffusion section 4. The inner wall of the collecting section 3 is provided with multiple guide channels 5 that converge towards the center in a vortex-like pattern, which can guide a portion of the fluid and generate swirling flow. The ultra-high flow velocity of the fluid causes the gas and liquid in the fluid to generate a cavitation effect, thereby reducing the gas and liquid to the nanoscale, invisible to the naked eye. The gas and liquid form a huge contact area, increasing the reaction efficiency between them.

Claims

1. A gas-liquid nanoreactor, characterized in that, It includes a columnar reactor body, wherein the reactor body is provided with a plurality of sequentially connected mixing chambers along the axial direction; The mixing chamber is divided into a converging section and a diffusion section along the fluid flow direction. The converging section is a first conical cavity whose inner diameter gradually decreases along the fluid flow direction. The inner wall of the converging section is provided with multiple guide grooves that converge towards the center in a vortex shape. The diffusion section is a second conical cavity whose inner diameter gradually increases along the fluid flow direction, and the second conical cavity is connected to the first conical cavity.

2. The gas-liquid nanoreactor according to claim 1, characterized in that, Adjacent mixing chambers are connected by a transition chamber, the inner wall of which is cylindrical.

3. The gas-liquid nanoreactor according to claim 2, characterized in that, The reactor body is provided with a front cover at the front end, and the front cover is connected to an air inlet pipe and a liquid inlet pipe. The reactor body is provided with a rear end cover at the rear end, and the rear end cover is provided with a mixed fluid outlet pipe.

4. The gas-liquid nanoreactor according to claim 1, characterized in that, The number of the flow channels is 5-7.

5. The gas-liquid nanoreactor according to claim 4, characterized in that, The number of mixing chambers is 5-9.

6. The gas-liquid nanoreactor according to any one of claims 1-5, characterized in that, The reactor body is made of 316L stainless steel, alloy silicon carbide, special ceramics, or special PTFE materials.

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