Anaerobic reaction system

Abstract

The utility model discloses an anaerobic reaction system which comprises a main body piece and a gas supply piece, a reactor control cabinet conveys working gas into a pipe fitting, the working gas is conveyed to the bottom of a working cavity of the main body piece under the guiding action of the pipe fitting, and when the working gas passes through a distributor, the working gas is discharged into the working cavity through gas holes in the distributor; the size of bubbles is controlled through the air holes formed in the distributor, and the contact area of the bubbles and the reaction materials is increased, so that the absorption efficiency of the operation gas is improved, the bubbles are more easily absorbed by thalli, the activity of the strains is enhanced, the gas loss is reduced, and the biological fermentation efficiency is improved. More importantly, by controlling the aperture of the air holes in the distributor, bacterial clusters formed when thalli are aged or the strain state is poor are not easy to block the distributor, so that the reaction reliability and efficiency are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of synthesis gas biological fermentation, and particularly relates to an anaerobic reaction system. BACKGROUND

[0002] The synthesis gas biological fermentation method is a new fermentation technology, in which carbon monoxide in industrial tail gas is taken as a carbon source by Clostridium autoethanogenum, and the carbon monoxide is converted into organic compounds such as ethanol through metabolism of the bacteria.

[0003] At present, in order to perform biological fermentation by using a small anaerobic reactor, industrial tail gas containing carbon monoxide needs to be continuously introduced, and the industrial tail gas enters the bottom of the tank through a gas pipe and contacts the bacterial liquid through small holes at the bottom of the gas pipe, so as to realize continuous biological fermentation of gas and liquid. In a small biological reactor and a fermentation tank system, it is difficult to achieve high-quality gas transmission. The realization of gas mass transfer in a small anaerobic reactor (2L, 3L or 15L, etc.) depends on 10-20 small holes at the bottom of the gas pipe, and the hole diameter is about 0.5mm. The number of small holes is small relative to the volume of the reactor, and the small holes are distributed in the center of the tank bottom, so that the carbon monoxide bubbles are large, which is not conducive to the absorption of carbon monoxide by the bacterial liquid. In addition, the contact probability of the bacterial liquid and the bubbles near the tank wall is low, and the gas mass transfer capacity is weak, which causes a large amount of gas loss and affects the fermentation efficiency.

[0004] Therefore, in order to avoid gas loss and promote the contact area of the bubbles and the bacterial liquid, the stirring speed is usually increased to improve the gas mass transfer. However, with the increase of the stirring speed, the risk of foaming of the bacteria is also increased. After the bacteria foam, the metabolism of the bacteria is affected, and even the bacteria are killed.

[0005] In addition, since the industrial tail gas pipeline cannot be cleaned for a long time and the pipeline is long, impurities will accumulate in the industrial tail gas pipeline with the extension of the use time. Due to the influence of the front end tail gas pretreatment and the gas temperature, water is often left in the tail gas pipeline. With the extension of time, anaerobic bacteria are likely to breed, which may affect the metabolism of the bacteria in the reactor and increase the risk of blockage of the foaming area. CONTENT OF THE UTILITY MODEL

[0006] In view of the defects in the prior art, the present application provides an anaerobic reaction system to solve the problems of poor foaming reaction effect and easy blockage in the anaerobic reactor in the prior art.

[0007] The above-mentioned purposes of the present application are mainly achieved by the following technical solutions:

[0008] An anaerobic reaction system, comprising:

[0009] A main body, wherein an operation cavity is arranged in the main body;

[0010] The gas supply member comprises a pipe for connecting the reactor control cabinet and a distributor for extending into the working cavity, the pipe is provided with a conveying channel, and the pipe is communicated with the reactor control cabinet and the distributor respectively, the distributor is provided with a gas hole communicated with the pipe, and the inner part of the distributor is provided with a shunt cavity which is gradually reduced from one side close to the pipe to the other side.

[0011] In an optional embodiment, the gas supply member is provided with two filter parts respectively.

[0012] In an optional embodiment, the distributor is arc-shaped, and two distributors are distributed in the working cavity with a first gap between the distributor and the bottom surface of the working cavity.

[0013] In an optional embodiment, the main body member comprises a tank body and a cover body detachably connected with the tank body, and the gas supply member penetrates the cover body.

[0014] In an optional embodiment, the distributor is made of metal sintered material, and the gas holes are uniformly distributed on the distributor.

[0015] In an optional embodiment, the diameter of the gas hole is 5-10 microns.

[0016] In an optional embodiment, the main body member is provided with a stirring member, and the top of the stirring member is further provided with a defoaming part.

[0017] In an optional embodiment, the main body member is provided with a material taking pipe and a plurality of material supplementing pipes, one end of the material supplementing pipe extends into the working cavity for adding material into the working cavity, and one end of the material taking pipe extends to the bottom of the working cavity.

[0018] In an optional embodiment, the main body member is provided with an exhaust port and a sensor communicated with the working cavity.

[0019] In an optional embodiment, the outer wall of the main body member is coated with a heating member.

[0020] Compared with the prior art, the application has the following advantages:

[0021] The anaerobic reaction system in the application comprises a main body and a gas supply part, the main body is internally provided with a working cavity, the gas supply part comprises a pipe for connecting a reactor control cabinet and a distributor for extending into the working cavity, the pipe is internally provided with a conveying channel, the pipe is respectively communicated with the reactor control cabinet and the distributor at two ends, the distributor is internally provided with a shunt cavity, and the surface of the distributor is provided with air holes communicated with the pipe, the shunt cavity is gradually reduced from one side close to the pipe to the other side, during the reaction operation, the reactor control cabinet conveys working gas into the pipe, the working gas is conveyed to the bottom of the working cavity of the main body under the guidance of the pipe, and is discharged into the working cavity through the air holes on the distributor, so that the working gas reacts with the pre-added reaction materials in the working cavity, the size of the bubbles is controlled through the air holes arranged on the distributor, the contact area of the bubbles and the reaction materials is increased, the absorption efficiency of the working gas is improved, the bubbles are more easily absorbed by the bacteria, the activity of the bacteria is enhanced, the gas loss is reduced, and the biological fermentation efficiency is improved. More importantly, the formed bacteria groups are not easy to block the distributor when the bacteria are aging or the state of the bacteria is poor, the reaction reliability and efficiency are improved. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the application, the following will briefly introduce the drawings needed to be used in the embodiment description. Obviously, the drawings in the following description only some embodiments of the application, and for those skilled in the art, other drawings can also be obtained without creative labor.

[0023] Figure 1 The structure diagram of the anaerobic reaction system provided by the embodiments of the application is shown.

[0024] In the figure: 100, main body; 101, working cavity; 102, tank body; 103, cover; 200, gas supply part; 201, pipe; 202, distributor; 203, filter part; 301, stirring part; 302, defoaming part; 303, material taking pipe; 304, material supplementing pipe; 401, exhaust port; 402, sensor; 403, heating part. DETAILED DESCRIPTION

[0025] The application will be further described below in conjunction with the drawings and specific embodiments. It should be noted that the description of these embodiments is used to help understand the application, but does not constitute a limitation on the application. The specific structure and functional details disclosed in this paper are only used to describe the example embodiments of the application. However, the application can be embodied in many alternative forms, and should not be understood as limited in the embodiments described herein.

[0026] As Figure 1 shown, Figure 1 The structure diagram of the anaerobic reaction system provided by the embodiment of the present application is shown in the figure. The anaerobic reaction system comprises a main body 100 and a gas supply part 200, wherein:

[0027] As Figure 1 shown, the main body 100 is provided with a working cavity 101. The main body 100 is the core part of the anaerobic reaction system, and comprises a working cavity 101, i.e. the space where the reaction occurs. The working cavity 101 provides a sealed environment for the reaction to maintain anaerobic conditions, while allowing the entry and exit of reactants and products.

[0028] As Figure 1 shown, the gas supply part 200 comprises a pipe 201 for connecting the reactor control cabinet and a distributor 202 for extending into the working cavity 101. The pipe 201 is provided with a conveying channel. The two ends of the pipe 201 are respectively connected to the reactor control cabinet and the distributor 202. The distributor 202 is internally provided with a shunt cavity, and the surface of the distributor 202 is provided with gas holes that can be connected to the pipe 201. The shunt cavity is gradually reduced from one side to the other side near the pipe 201.

[0029] The gas supply part 200 is responsible for providing the required gas to the working cavity 101 to maintain an anaerobic environment or provide the necessary gas components. The gas supply part 200 comprises a pipe 201 and a distributor 202. The pipe 201 is a pipeline that connects the reactor control cabinet and the distributor 202 inside the working cavity 101. The pipe 201 is internally provided with a conveying channel for conveying gas. One end of the pipe 201 is connected to the reactor control cabinet, and the other end extends to the distributor 202, ensuring that the gas can be smoothly transmitted from the control cabinet to the working cavity 101.

[0030] As Figure 1As shown, the distributor 202 is the end part of the gas supply member 200 and is located inside the working cavity 101. The distributor 202 is responsible for uniformly distributing the gas delivered by the pipe member 201 throughout the cavity. The distributor 202 is designed with a diverging cavity inside, which gradually narrows from one side close to the pipe member 201 to the other side. This helps to form a uniform flow field of the gas in the cavity, thereby improving the efficiency of gas distribution. At the same time, it avoids the situation that the uniform inner diameter of the space causes the pressure at the end of the distributor 202 to be lower, and improves the uniformity of the bubble size. The surface of the distributor 202 is provided with a plurality of gas holes, which are connected to the delivery channel inside the pipe member 201. The gas holes ensure that the gas can be effectively delivered from the pipe member 201 to each area of the working cavity 101. The design concept of the entire anaerobic reaction system is to provide an efficient and controllable anaerobic environment to promote specific chemical reactions or biodegradation processes. Ensuring the stability and consistency of the reaction conditions, thereby improving the reaction efficiency and the quality of the product.

[0031] In an alternative embodiment, the working principle of the anaerobic reaction system in the present application is as follows: the anaerobic reaction system comprises a main body member 100 and a gas supply member 200. The main body member 100 is provided with a working cavity 101 inside. The gas supply member 200 comprises a pipe member 201 for connecting the reactor control cabinet and a distributor 202 for extending into the working cavity 101. The pipe member 201 is provided with a delivery channel inside. The two ends of the pipe member 201 are connected to the reactor control cabinet and the distributor 202, respectively. The distributor 202 is provided with a diverging cavity inside. The surface of the distributor 202 is provided with gas holes that can be connected to the pipe member 201. The diverging cavity is gradually narrowed from one side close to the pipe member 201 to the other side. During the reaction operation, the reactor control cabinet delivers working gas into the pipe member 201. Under the guidance of the pipe member 201, the working gas is delivered to the bottom of the working cavity 101 of the main body member 100 and is discharged into the working cavity 101 through the gas holes on the distributor 202, so that the working gas reacts with the pre-added reaction material in the working cavity 101. The size of the bubbles is controlled by the gas holes arranged on the distributor 202, which increases the contact area between the bubbles and the reaction material, thereby improving the absorption efficiency of the working gas. The bubbles are more easily absorbed by the bacteria, which enhances the activity of the bacteria, reduces the gas consumption, and improves the efficiency of biological fermentation. More importantly, by controlling the aperture of the gas holes on the distributor 202, the bacterial groups formed when the bacteria are aging or the state of the bacteria is not good are not easy to block the distributor 202, which improves the reliability and efficiency of the reaction.

[0032] As Figure 1As shown, in an optional embodiment, the gas supply member 200 is provided with two, each of which is provided with a filter part 203 to filter out impurities and bacteria in the working gas, ensuring the cleanliness of the working gas.

[0033] By providing two gas supply members 200, the system can more flexibly control the supply of gas. These two gas supply members 200 can be operated independently, allowing targeted gas supply to different areas within the working cavity 101, or working simultaneously to increase the amount of gas supply when needed. Further improving the adaptability and controllability of the system, making it able to cope with a wider range of reaction conditions and needs.

[0034] As shown, in an optional embodiment, the gas supply member 200 is provided with two, each of which is provided with a filter part 203 to filter out impurities and bacteria in the working gas, ensuring the cleanliness of the working gas. Figure 1 As shown, in an optional embodiment, the distributor 202 is arc-shaped, and two distributors 202 are spaced apart within the working cavity 101, and a first gap is provided between the distributor 202 and the bottom surface of the working cavity 101.

[0035] In this optional embodiment, the distributor 202 is designed to be arc-shaped. The arc-shaped distributor 202 helps to optimize the gas flow path, reduce turbulence and dead angles during gas flow, and thus improve the uniform distribution of gas within the working cavity 101. The arc-shaped design also helps to reduce the resistance of gas flow, so that the gas can flow more smoothly from the pipe 201 to the working cavity 101.

[0036] The two arc-shaped distributors 202 are spaced apart within the working cavity 101, which can ensure more uniform gas supply throughout the cavity. By providing distributors 202 at different positions of the working cavity 101, it can avoid uneven gas supply and ensure that each area can obtain sufficient gas during the reaction process, thereby improving the overall reaction efficiency.

[0037] The distributor 202 and the bottom surface of the working cavity 101 are provided with a first gap, which provides additional space for gas flow, helps to reduce the direct impact of gas flow on the bottom surface, thereby reducing the pressure and wear on the bottom surface. The first gap can also act as a buffer zone to reduce noise and vibration generated by gas flow, helping to maintain the stability of the system. Further improving the efficiency, stability and adaptability of the anaerobic reaction system.

[0038] As shown, in an optional embodiment, the gas supply member 200 is provided with two, each of which is provided with a filter part 203 to filter out impurities and bacteria in the working gas, ensuring the cleanliness of the working gas. Figure 1As shown, in an optional embodiment, the main body 100 includes a tank 102 and a cover 103 detachably connected to the tank 102. The gas supply component 200 is disposed through the cover 103, wherein the cover 103 and the tank 102 are detachably connected. This allows the top of the tank 102 to be easily opened, facilitating inspection, maintenance, or cleaning of the interior of the working cavity 101. The detachable cover 103 allows for quick replacement or upgrading of components inside the tank 102, such as the distributor 202 or other internal structures, without requiring extensive modification or replacement of the entire tank 102. The gas supply component 200 passes through the cover 103, with a portion of the gas supply component 200 extending through the cover 103 and connected to the distributor 202 within the tank 102. This ensures the continuity and stability of the gas supply while reducing the risk of gas leakage. It also helps maintain the airtightness of the tank 102, ensuring the integrity of the anaerobic environment.

[0039] In an optional embodiment, the distributor 202 is made of sintered metal, and the pores are evenly distributed on the distributor 202.

[0040] The distributor 202 is made of sintered metal, which has high strength, corrosion resistance, and good gas permeability. The uniform and stable pore structure of the sintered metal distributor 202 helps to distribute gas evenly within the working cavity 101 while reducing gas flow resistance. The sintered metal material also has good chemical corrosion resistance, making it suitable for reaction environments with various chemical properties.

[0041] The uniformly distributed pores on the metal sintering distributor 202 help ensure a uniform gas supply from the distributor 202 to all areas of the working cavity 101, avoiding localized insufficient or excessive gas supply, thereby improving the uniformity and efficiency of the reaction. The uniformly distributed pores also help reduce noise and turbulence generated by gas flow, further stabilizing the reaction process.

[0042] In an optional embodiment, the pore size is 5-10 μm to control the size of the bubbles and the contact area between the gas and the bacterial solution.

[0043] like Figure 1 As shown, in an optional embodiment, the main body 100 is provided with a stirring member 301, and the top of the stirring member 301 is also provided with a defoaming part 302.

[0044] A stirring element 301 is added inside the main body 100 to stir the materials within the working cavity 101, ensuring uniform mixing and distribution of the reactants. A defoaming section 302 is also specially designed at the top of the stirring element 301. This component reduces or eliminates foam generated within the working cavity 101 due to stirring or other operations. Foam control is crucial for maintaining an anaerobic environment and preventing gas escape; the defoaming section 302 helps maintain the stability and efficiency of the reaction.

[0045] like Figure 1 As shown, in an optional embodiment, the main body 100 is provided with a material taking pipe 303 and a plurality of material replenishing pipes 304. One end of the material replenishing pipe 304 extends into the working cavity 101 for adding material into the working cavity 101, and one end of the material taking pipe 303 extends to the bottom of the working cavity 101.

[0046] The feed pipe 303 and the replenishment pipe 304 allow the operator to easily add or remove materials into the working cavity 101. One end of the replenishment pipe 304 extends into the working cavity 101 for adding new materials, while one end of the feed pipe 303 extends to the bottom of the working cavity 101 for removing reacted materials or products. This not only improves the efficiency of material handling but also facilitates the flexibility of continuous or batch operations.

[0047] like Figure 1 As shown, in an optional embodiment, the main body 100 is provided with an exhaust port 401 and a sensor 402 communicating with the working cavity 101. The exhaust port 401 is used to release gas from the working cavity 101 when needed to control pressure or adjust gas composition. The sensor 402 is used to monitor various parameters within the working cavity 101, such as temperature, pressure, and gas composition. These data are crucial for controlling reaction conditions and ensuring the smooth progress of the reaction. Through real-time monitoring and adjustment, the system can more precisely control the reaction process, improving reaction efficiency and safety.

[0048] like Figure 1 As shown, in an optional embodiment, the outer wall of the main body 100 is covered with a heating element 403.

[0049] To better control the temperature within the working cavity 101, a heating element 403 is provided on the outer wall of the main body 100. The heating element 403 can be an electric heater, a steam heater, or other type of heating equipment. Its function is to provide the necessary heat to the working cavity 101 to maintain the temperature conditions required for the anaerobic reaction. The heating element 403 may also include temperature control and regulation functions to achieve precise control of the reaction temperature.

[0050] It should be understood that the terms first, second, etc. are used to distinguish descriptions, and cannot be understood as indicating or implying relative importance. Although the terms first, second, etc. can be used herein to describe various units, these units should not be limited by these terms. These terms are only used to distinguish one unit from another unit. For example, the first unit can be called the second unit, and similarly the second unit can be called the first unit, without departing from the scope of the example embodiments of the present application.

[0051] It should be understood that the term "and / or" herein only describes the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B, which means that there are three cases of A alone, B alone, and A and B together. The term "and" herein describes another association relationship of the associated objects, which means that there can be two relationships, for example, A and B, which means that there are two cases of A alone and A and B together. In addition, the character " / " herein generally indicates that the associated objects before and after are an "or" relationship.

[0052] It should be understood that in the description of the present application, the orientation or position relationship indicated by the terms "upper", "vertical", "inner", "outer" and the like is the orientation or position relationship when the disclosed product is commonly placed or the orientation or position relationship commonly understood by those skilled in the art, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0053] In the description of the present application, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set", "mount", "connect" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0054] The terms used herein are only used to describe specific embodiments and are not intended to limit the example embodiments of the present application. As used herein, the singular forms "a", "an" and "the" are intended to include plural forms, unless the context clearly indicates otherwise. It should also be understood that the terms "include", "including", "contain", and / or "containing" when used herein specify the existence of the declared features, integers, steps, operations, units and / or components, and do not exclude the existence or addition of one or more other features, quantities, steps, operations, units, components and / or combinations thereof.

[0055] In the following description, specific details are set forth to provide a thorough understanding of example embodiments. However, one having ordinary skill in the art will understand that the example embodiments can be practiced without these specific details. In other instances, well-known processes, structures and techniques have not been shown to avoid obscuring the subject matter of this description.

[0056] The above description is merely that of the specific embodiments of the application and therefore is not to be taken in a limiting sense as the present application can be practiced with a wide variety of modifications and alterations to the embodiments described. Details of the application can be further understood by reference to the drawings detailed description, and appended claims.

[0057] It should be noted that information disclosed in this Background section was in fact discovered before the filing date of this patent document and may therefore not be prior art with respect to the application. Accordingly, this information is not admitted to be prior art against the present application, and it should not be used to construe the scope of the claims.

Claims

1. An anaerobic reaction system characterized by, The anaerobic reaction system comprises: a main body provided with a working cavity; a gas supply member comprising a pipe member for connecting a reactor control cabinet and a distributor extending into the working cavity, the pipe member being provided with a conveying channel, the pipe member being in communication with the reactor control cabinet and the distributor respectively, the distributor being provided with an internal shunt cavity and a plurality of gas holes on the surface thereof in communication with the pipe member, the shunt cavity being gradually reduced from one side close to the pipe member to the other side.

2. The anaerobic reaction system of claim 1, wherein: The gas supply member is provided with two filter portions respectively.

3. The anaerobic reaction system of claim 2, wherein: The distributor is in the shape of an arc, and two distributors are spaced apart and arranged in the working cavity, and a first gap is provided between the distributor and the bottom surface of the working cavity.

4. The anaerobic reaction system of claim 1, wherein: The main body comprises a tank body and a cover body detachably connected to the tank body, and the gas supply member extends through the cover body.

5. The anaerobic reaction system of claim 1, wherein: The distributor is made of metal sintered material, and the gas holes are uniformly distributed on the distributor.

6. The anaerobic reaction system of claim 1, wherein: The diameter of the gas holes is 5-10 μm.

7. The anaerobic reaction system of claim 1, wherein: The main body is provided with a stirring member and a defoaming portion on the top of the stirring member.

8. The anaerobic reaction system of claim 1, wherein: The main body is provided with a material taking pipe and a plurality of material supplementing pipes, one end of the material supplementing pipe extending into the working cavity for adding material into the working cavity, and one end of the material taking pipe extending to the bottom of the working cavity.

9. The anaerobic reaction system of claim 1, wherein: The main body is provided with an exhaust port and a sensor in communication with the working cavity.

10. The anaerobic reaction system of claim 1, wherein: The outer wall of the main body is coated with a heating member.

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