Biological fermentation tank for improving microbial fermentation efficiency
By working together with the gas distribution system and the stirring system, microbubbles are formed, which solves the problem of low oxygen solubility caused by excessively large bubbles, improves the efficiency of microbial fermentation, and shortens the fermentation cycle.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-17
- Publication Date
- 2026-04-07
AI Technical Summary
Excessively large bubbles result in a small contact area between the gas and the liquid, affecting oxygen solubility, limiting the growth rate of microorganisms, and prolonging the fermentation cycle.
By employing the coordinated operation of a gas distribution system and a stirring system, microbubbles are formed through a diffuser and breaking teeth, which, combined with the stirring action of the stirring system, enhances the contact efficiency between gas and liquid.
It effectively prevents bubbles from becoming too large, enhances oxygen solubility, improves microbial fermentation efficiency, and shortens the fermentation cycle.
Smart Images

Figure CN224091868U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of bio-fermentation technology, and specifically relates to a bio-fermenter that improves the efficiency of microbial fermentation. Background Technology
[0002] A fermenter used for microbial fermentation includes a tank body, a stirring system, an air supply system, a temperature control system, and inlets and outlets. The stirring system is mainly used for gas-liquid mixing, thereby improving oxygen solubility and microbial growth efficiency.
[0003] During microbial fermentation, the size of the bubbles directly affects the contact area between the gas and the liquid. If the bubbles are too large, the contact area is small, which limits the exchange efficiency between the gas and the liquid, reduces oxygen solubility, and thus affects cell growth and metabolism, resulting in a slower growth rate of microorganisms and a longer fermentation cycle. Utility Model Content
[0004] In view of the problems existing in the background art, the present invention provides a bio-fermentation tank for improving the efficiency of microbial fermentation, comprising:
[0005] support;
[0006] The tank is mounted on the support.
[0007] A sealing cap is provided on the tank body.
[0008] The gas distribution system located inside the tank;
[0009] The air distribution system includes an air inlet end.
[0010] The air distribution system also includes a storage end, which is connected to the air inlet end;
[0011] The gas outlet of the storage end is connected to the gas supply pipe.
[0012] A diffuser connected to the gas pipeline is installed on the gas pipeline;
[0013] A stirring system is installed inside the tank, away from the sealing cap.
[0014] Optionally, the diffuser is arranged in multiple groups and evenly distributed along the transverse direction of the gas pipeline.
[0015] Optionally, the diffuser includes a first conduit;
[0016] The diffuser also includes a second conduit, and
[0017] The shell of the second pipe is double-layered.
[0018] The external thread of the first pipe is threadedly connected to the internal thread of the second pipe.
[0019] Optionally, a flow guide is installed inside the second pipe.
[0020] The second pipe is mounted on the disc via a connecting rod, and is positioned on the crushing teeth via the disc.
[0021] The disks are arranged in two sets.
[0022] The outer circumference of the disk has multiple sets of evenly distributed serrations.
[0023] Optionally, the crushing tooth extends outward along its center, expanding outward from the center.
[0024] Furthermore, multiple sets of tooth grooves are formed along the circumference of the breaking tooth, making the whole structure gear-shaped.
[0025] The crushing teeth are provided with multiple sets of cutting columns in the circumferential direction.
[0026] The top of the cutting column is triangular.
[0027] Optionally, the flow guide includes a flow guide rod.
[0028] The bottom end of the guide rod is fixedly installed on the bottom end of the inside of the second pipe;
[0029] The guide rod is equipped with guide vanes that are spirally arranged along its longitudinal direction.
[0030] The guide vanes are arranged in an arc shape.
[0031] The guide vane near the guide rod has a reinforced end.
[0032] Optionally, the stirring system includes a servo motor.
[0033] The servo motor is mounted on the tank body away from the sealing cap.
[0034] The drive end of the servo motor passes through the tank body and extends into the interior of the tank body.
[0035] Furthermore, the stirring shaft is connected via a bearing assembly.
[0036] The stirring shaft is connected to the stirring disc along its longitudinal direction via a connector.
[0037] Optionally, the mixing disc is provided with multiple sets of stirring rods along its circumference.
[0038] The stirring rod and the stirring plate are integrated into one unit.
[0039] In summary, the beneficial effects of this utility model are:
[0040] (1) By adding a gas distribution system, when the gas is ejected through the outlet of the second pipe, the breaking teeth extend outward along their center, making it expand outward from the center, which facilitates the gas to diffuse outward evenly along its outer wall. Furthermore, the breaking teeth further cut the bubbles to form tiny bubbles, which can effectively prevent the bubbles from becoming too large.
[0041] (2) This utility model uses the coordinated work of the stirring system and the gas distribution system. The tiny bubbles sprayed by the gas distribution system, with the cooperation of the stirring system, make the bubbles fully contact the liquid, thereby enhancing the solubility of the gas. Attached Figure Description
[0042] Figure 1 This is a schematic diagram of the overall structure of the first embodiment of a bio-fermentation tank for improving microbial fermentation efficiency according to the present invention;
[0043] Figure 2 This is a partial structural schematic diagram of the first embodiment of a bio-fermentation tank for improving microbial fermentation efficiency according to the present invention;
[0044] Figure 3 This utility model Figure 2 Enlarged view of the structure at position A in the middle;
[0045] Figure 4 This is an exploded view of the diffuser of the first embodiment of a bio-fermentation tank for improving microbial fermentation efficiency according to the present invention;
[0046] Figure 5 This utility model Figure 4 Enlarged view of the middle guide vane section;
[0047] Figure 6 This is a schematic diagram of the stirring system structure of the first embodiment of a bio-fermenter for improving microbial fermentation efficiency according to the present invention.
[0048] Figure label:
[0049] 100. Fermentation tank;
[0050] 10. Sealing cap;
[0051] 20. Tank body;
[0052] 30. Gas distribution system; 301. Air inlet end; 302. Storage end; 303. Gas delivery pipe;
[0053] 40. Stirring system; 401. Servo motor; 402. Stirring shaft; 403. Stirring disc; 404. Stirring rod;
[0054] 50. Bracket;
[0055] 60. Diffuser; 601. First pipe; 602. External thread; 603. Second pipe; 604. Cutting column; 605. Crushing tooth; 606. Diffuser cover; 607. Flow guide; 6071. Flow guide vane; 6072. Flow guide rod; 6073. Reinforcing end; 608. Disc; 609. Internal thread. Detailed Implementation
[0056] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. Although exemplary embodiments are disclosed in the drawings, it should be understood that the present utility model can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to facilitate a more thorough understanding of the present utility model and to fully convey the concept of the present utility model to those skilled in the art.
[0057] In the description of this specification, the references to terms such as "certain embodiments," "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.
[0058] In this utility model, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; the term "multiple" refers to two or more unless otherwise explicitly defined. The terms "install," "connect," "join," and "fix" should be interpreted broadly. For example, "connect" can be a fixed connection, a detachable connection, or an integral connection; "join" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0059] Please see Figure 1-6As shown, this embodiment provides a bio-fermentation tank 100 for improving the efficiency of microbial fermentation, including a support 50, a tank body 20 disposed on the support 50, and a sealing cover 10 disposed on the tank body 20. The tank body 20 is provided with a gas distribution system 30, which includes an air inlet end 301, and is connected to an external gas source through the air inlet end 301 to deliver gas into the tank body 20.
[0060] The air distribution system 30 also includes a storage end 302, which is connected to the air inlet end 301;
[0061] The gas outlet of the storage end 302 is connected to the gas supply pipe 303, and a diffuser 60 connected to the gas supply pipe 303 is provided on the gas supply pipe 303.
[0062] A stirring system 40 is provided inside the tank body 20, which is away from the sealing cover 10.
[0063] Furthermore, the diffuser 60 is arranged in multiple groups and is evenly distributed along the transverse direction of the gas supply pipe 303.
[0064] In microbial fermentation, the size of bubbles directly affects the contact area between gas and liquid. Excessively large bubbles result in a small contact area, limiting the efficiency of gas-liquid exchange, reducing oxygen solubility, and thus impacting cell growth and metabolism. This is especially true in aerobic fermentation processes that require oxygen, potentially slowing microbial growth and prolonging the fermentation cycle. For solutions to the problem of excessively large bubbles, please refer to [link to relevant documentation]. Figure 1-6 The diffuser 60 includes a first conduit 601;
[0065] The diffuser 60 further includes a second pipe 603, and the shell of the second pipe 603 is double-layered, with a cavity between the two shells and located on the outer wall of the inner shell. The external thread 602 of the first pipe 601 is threadedly connected to the internal thread 609 of the second pipe 603.
[0066] Furthermore, a flow guide 607 is installed inside the second pipe 603 so that the gas is transported into the second pipe 603 under the guidance of the flow guide 607 and ejected through the outlet.
[0067] Furthermore, the second pipe 603 is mounted on the disc 608 via a connecting rod, and is set on the crushing tooth 605 via the disc. During installation, the disc can be fixedly connected by fastening screws or welding. The disc 608 is arranged in two sets, and multiple sets of evenly distributed serrations are opened on the outer periphery of the disc along its circumference.
[0068] Furthermore, the crushing tooth 605 extends outward from its center, expanding outward from the center, and multiple sets of tooth grooves are opened along the circumference of the crushing tooth 605, making it gear-shaped as a whole.
[0069] It should be noted that when the gas is ejected through the outlet of the second pipe 603, the breaking teeth 605 extend outward along their center, allowing the gas to spread evenly outward along their outer wall. Furthermore, the teeth of the breaking teeth 605 further break the bubbles, forming tiny bubbles, which effectively prevents the bubbles from becoming too large.
[0070] Furthermore, in application, the teeth of the breaking tooth 605 can be set to tilt downwards according to actual needs.
[0071] Furthermore, the crushing teeth are provided with multiple sets of cutting columns 604 in the circumferential direction, and the top of the cutting columns 604 is triangular to facilitate better splitting of bubbles.
[0072] Furthermore, the flow guide 607 includes a flow guide rod 6072, and the bottom end of the flow guide rod 6072 is fixedly installed on the bottom end inside the second pipe 603;
[0073] The guide rod 6072 is equipped with a guide vane 6071 that is spirally arranged along its longitudinal direction. The guide vane 6071 is arc-shaped, and a reinforcing end 6073 is provided on the guide vane 6071 near the position of the guide rod 6072.
[0074] It should be noted that the guide vanes can effectively guide the gas to flow along a specific path. The guide vanes help guide the gas effectively before it is ejected, which in turn helps the gas to be ejected at high speed through the outlet of the second pipe.
[0075] Furthermore, the stirring system 40 includes a servo motor 401, which is fixedly mounted on the tank 20 away from the sealing cover by fastening screws. The drive end of the servo motor 401 passes through the tank and extends into the interior of the tank 20, and is connected to the stirring shaft 402 through a bearing assembly. The stirring shaft 402 is connected to the stirring disc 403 along its longitudinal direction through a connector.
[0076] Furthermore, the mixing plate 403 is provided with a plurality of mixing rods 404 along its circumference, and the mixing rods 404 are integrally formed with the mixing plate 403.
[0077] In this embodiment, the servo motor 401 is started to drive the stirring shaft 402 to rotate, which in turn drives the stirring rod 404 to rotate, so as to facilitate thorough mixing.
[0078] It should be noted that through the coordinated operation of the stirring system 40 and the gas distribution system 30, the tiny bubbles ejected by the gas distribution system 30, with the cooperation of the stirring system 40, allow the bubbles to come into full contact with the liquid, thereby enhancing the solubility of the gas.
[0079] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not restrictive. Although this utility model has been described in detail with reference to the embodiments, those skilled in the art should understand that modifications or equivalent substitutions to the technical solution of this utility model do not depart 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 bioreactor for improving the efficiency of microbial fermentation, characterized in that, include: support; The tank is mounted on the support. A sealing cap is provided on the tank body. The gas distribution system located inside the tank; The air distribution system includes an air inlet end. The air distribution system also includes a storage end, which is connected to the air inlet end; The gas outlet of the storage end is connected to the gas supply pipe. A diffuser connected to the gas pipeline is installed on the gas pipeline; A stirring system is installed inside the tank, away from the sealing cap.
2. The bio-fermenter for improving microbial fermentation efficiency according to claim 1, characterized in that, The diffusers are arranged in multiple groups and are evenly distributed along the transverse direction of the gas pipeline.
3. The bio-fermentation tank for improving microbial fermentation efficiency according to claim 2, characterized in that, The diffuser includes a first conduit; The diffuser also includes a second conduit, and The shell of the second pipe is double-layered. The external thread of the first pipe is threadedly connected to the internal thread of the second pipe.
4. A bioreactor for improving microbial fermentation efficiency according to claim 3, characterized in that, A flow guide is installed inside the second pipe. The second pipe is mounted on the disc via a connecting rod, and is positioned on the crushing teeth via the disc. The disks are arranged in two sets. The outer circumference of the disk has multiple sets of evenly distributed serrations.
5. A bioreactor for improving microbial fermentation efficiency according to claim 4, characterized in that, The crushing teeth extend outward from their center, expanding outward from the center. Furthermore, multiple sets of tooth grooves are formed along the circumference of the breaking tooth, making the whole structure gear-shaped. The crushing teeth are provided with multiple sets of cutting columns in the circumferential direction. The top of the cutting column is triangular.
6. A bioreactor for improving microbial fermentation efficiency according to claim 4, characterized in that, The flow guide includes a flow guide rod. The bottom end of the guide rod is fixedly installed on the bottom end of the inside of the second pipe; The guide rod is equipped with guide vanes that are spirally arranged along its longitudinal direction. The guide vanes are arranged in an arc shape. The guide vane near the guide rod has a reinforced end.
7. A bioreactor for improving microbial fermentation efficiency according to claim 1, characterized in that, The stirring system includes a servo motor. The servo motor is mounted on the tank body away from the sealing cap. The drive end of the servo motor passes through the tank body and extends into the interior of the tank body. Furthermore, the stirring shaft is connected via a bearing assembly. The stirring shaft is connected to the stirring disc along its longitudinal direction via a connector.
8. A bioreactor for improving microbial fermentation efficiency according to claim 7, characterized in that, The mixing disc is provided with multiple sets of mixing rods along its circumference. The stirring rod and the stirring plate are integrated into one unit.