Jet defoamer for fermentation equipment
By designing a jet defoamer in the fermentation equipment, using spoiler columns and broken bubble structures to efficiently absorb and crush foam, the problems of poor defoaming effect during fermentation and chemical defoaming inhibition of bacterial growth are solved, achieving high efficiency and low Cost defoaming effect.
Patent Information
- Application Number
- CN202420942234.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-30
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2034-04-30
AI Technical Summary
In the prior art, the physical defoaming effect is poor during the fermentation process, and the chemical defoaming method will inhibit the growth of bacterial seeds, affect the fermentation effect and be costly.
A jet defoamer is designed, including a shell, a spoiler column and a broken bubble structure. By setting a foam inlet on the side wall of the shell, the spoiler column generates negative pressure to absorb the foam, and breaks the foam in the broken bubble structure. Avoid affecting the fermenter.
It achieves efficient defoaming, ensures fermentation effect, reduces production costs, avoids the inhibition of chemical defoaming on bacterial species, and improves the practicality of defoaming.
Smart Images
Figure CN222196015U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of biological fermentation devices, and in particular relates to a jet defoamer used in fermentation equipment. Background Art
[0002] Fermentation engineering generally refers to the process of using microorganisms to manufacture or produce certain products. Fermentation tanks are usually used in the fermentation process, and the bottom of the fermentation tank is connected to a ventilation component. The sterile air source in the ventilation component is connected to the bottom of the fermentation tank through a gas pipeline to introduce sterile air into the fermentation tank. Foam will be generated in the actual production process. As the culture time increases, the foam in the fermentation tank will continue to increase. The foam will occupy a large amount of tank volume, and the actual available capacity of the fermentation tank will be reduced. Excessive foam may cause liquid escape (fermentation liquid overflows the fermentation tank), causing the loss of culture medium. The foam rises to the top of the fermentation tank and seeps out from the shaft seal, causing the risk of bacterial contamination. Therefore, the foam is usually defoamed.
[0003] In the prior art, commonly used defoaming methods include mechanical and chemical defoaming. Among them, mechanical defoaming mainly uses a stirring structure to break the foam in the fermentation tank, and the defoaming effect is poor. Chemical defoaming is to add a sterilized defoamer to the fermentation tank. Excessive use of defoamers will inhibit the growth of bacteria, reduce the oxygen solubility of the fermentation liquid, affect the fermentation effect, and have high production costs and poor practicality. Utility Model Content
[0004] The utility model provides a jet defoamer for fermentation equipment, aiming to solve the problems in the prior art that the physical defoaming method used in the fermentation process has poor defoaming effect, and the chemical defoaming method inhibits the growth of bacteria and affects the fermentation effect.
[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: to provide a jet defoamer for fermentation equipment, comprising:
[0006] The shell has a cavity, an air inlet is provided at the top of the shell, a fermentation liquid outlet is provided at the bottom, and a foam inlet is provided on the side wall of the shell; the air inlet and the fermentation liquid outlet are respectively connected to two interfaces provided on the gas pipeline; the foam inlet is connected to the overflow port provided on the side wall of the fermentation tank;
[0007] A spoiler column, disposed in the cavity, the spoiler column having a tapered portion facing the air inlet;
[0008] The foam crushing structure is arranged in the cavity and located below the foam inlet.
[0009] In a possible implementation manner, the spoiler column is arranged along a vertical direction, and the conical portion is located at an upper end of the spoiler column.
[0010] In a possible implementation, the bubble breaking structure is located at the periphery of the spoiler column, and is fixedly connected to the inner wall of the cavity and the spoiler column respectively.
[0011] In a possible implementation, the bubble breaking structure includes a plurality of breaking teeth, and each of the breaking teeth is evenly distributed on the periphery of the spoiler column around the axis of the spoiler column.
[0012] In a possible implementation, the interface communicating with the air inlet is far away from the fermentation tank, and the interface communicating with the fermentation liquid outlet is close to the fermentation tank.
[0013] In a possible implementation, the foam inlet is connected to the overflow port through a first pipeline, the air inlet is connected to the interface through a second pipeline, and the fermentation liquid outlet is connected to the interface through a third pipeline.
[0014] In a possible implementation, the first pipeline is provided with a first control valve for controlling the on-off of the first pipeline; the second pipeline is provided with a second control valve for controlling the on-off of the second pipeline; and the third pipeline is provided with a third control valve for controlling the on-off of the third pipeline.
[0015] The utility model provides a jet defoamer for fermentation equipment with the following beneficial effects: compared with the prior art, by arranging a foam inlet on the side wall of the shell, the foam inlet is connected to the overflow port on the side wall of the fermentation tank, the top of the shell has an air inlet, a spoiler column is arranged in the cavity, and the spoiler column has a tapered portion facing the air inlet, so that the airflow entering the cavity through the air inlet increases in velocity at the spoiler column, and a negative pressure is generated inside the shell, and then the foam in the fermentation tank is sucked out through the overflow port, the foam enters the shell cavity through the foam inlet, and then the foam is broken by the defoaming unit, the shell is arranged outside the fermentation tank, and the fermentation process in the fermentation tank is not affected, and the fermentation effect is guaranteed. Moreover, by forming a negative pressure state in the cavity of the shell to suck out the foam, components that are not conducive to fermentation are not introduced into the fermentation tank, and the fermentation is ensured to proceed normally while defoaming, the efficiency of defoaming and the effect of fermentation are guaranteed, the production cost is reduced, and the practicality is good. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 A schematic diagram of the structure of a defoaming unit of a jet defoamer for fermentation equipment provided by an embodiment of the utility model;
[0017] Figure 2 A schematic diagram of the shell structure of a jet defoamer for fermentation equipment provided by an embodiment of the utility model;
[0018] Figure 3A schematic diagram of the matching structure of a spoiler column and a crushing tooth of a jet defoamer for a fermentation device provided by an embodiment of the utility model;
[0019] Figure 4 A schematic diagram of the application structure of a jet defoamer for fermentation equipment provided in an embodiment of the utility model.
[0020] Description of reference numerals:
[0021] 10. Shell; 11. Cavity; 12. Air inlet; 13. Fermentation liquid outlet; 14. Foam inlet; 20. Baffle column; 21. Conical portion; 30. Bubble crushing structure; 31. Crushing teeth; 40. First pipeline; 41. First control valve; 50. Second pipeline; 51. Second control valve; 60. Third pipeline; 61. Third control valve; 70. Fermentation tank; 80. Ventilation assembly; 81. Sterile air source; 82. Gas pipeline. DETAILED DESCRIPTION
[0022] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.
[0023] It should be noted that the directions or positional relationships indicated by terms such as “length”, “width”, “height”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “head” and “tail” are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limitations on the present invention.
[0024] It should also be noted that, unless otherwise clearly specified and limited, the terms such as "installation", "connection", "fixation", "setting" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.
[0025] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In addition, the meaning of "multiple" and "several" is two or more, unless otherwise clearly and specifically defined.
[0026] Please also read Figures 1 to 4 , a jet defoamer for a fermentation device provided by the utility model is now described. The jet defoamer for a fermentation device comprises a shell 10, a spoiler column 20 and a bubble crushing structure 30. The shell 10 has a cavity 11. An air inlet 12 is provided at the top of the shell 10, a fermentation liquid outlet 13 is provided at the bottom, and a foam inlet 14 is provided on the side wall of the shell 10. The air inlet 12 and the fermentation liquid outlet 13 are respectively connected to two interfaces arranged on the gas supply pipeline 82. The foam inlet 14 is connected to an overflow port arranged on the side wall of the fermentation tank 70. The spoiler column 20 is arranged in the cavity 11, and the spoiler column 20 has a tapered portion 21 facing the air inlet 12. The bubble crushing structure 30 is arranged in the cavity 11 and is located below the foam inlet 14.
[0027] In this embodiment, the top of the shell 10 has an air inlet 12, and the spoiler column 20 is arranged in the cavity 11, and the spoiler column 20 has a tapered portion 21 facing the air inlet 12, so that the air flow entering the cavity 11 through the air inlet 12 increases in velocity at the spoiler column 20, and a negative pressure is generated inside the shell 10, so that the foam in the fermentation tank 70 is sucked out through the overflow port, and the foam enters the cavity 11 of the shell 10 through the foam inlet 14. The bubble crushing structure 30 is arranged below the foam inlet 14, so that the foam entering the cavity 11 can be crushed. After the foam is crushed, it is converted into fermentation liquid, and the fermentation liquid can be discharged through the fermentation liquid outlet 13.
[0028] The embodiment of the utility model provides a jet defoamer for fermentation equipment. Compared with the prior art, a foam inlet 14 is arranged on the side wall of the shell 10, and the foam inlet 14 is connected to the overflow port on the side wall of the fermentation tank 70. The top of the shell 10 has an air inlet 12, and a spoiler column 20 is arranged in the cavity 11, and the spoiler column 20 has a tapered portion 21 facing the air inlet 12, so that the airflow entering the cavity 11 through the air inlet 12 increases in flow velocity at the spoiler column 20, and a negative pressure is generated inside the shell 10, thereby sucking out the foam in the fermentation tank 70 through the overflow port, and the foam enters the cavity 11 of the shell 10 through the foam inlet 14, and then the foam is broken by the defoaming unit. The shell 10 is arranged outside the fermentation tank 70, which will not affect the fermentation process in the fermentation tank 70, thereby ensuring the fermentation effect. Furthermore, by forming a negative pressure state in the cavity 11 of the shell 10 to suck out the foam, no components that are not conducive to fermentation will be introduced into the fermentation tank 70, and normal fermentation can be ensured while defoaming, thereby ensuring the efficiency of defoaming and the effect of fermentation, reducing production costs, and having good practicality.
[0029] In some embodiments, see Figure 1 and Figure 3 , the spoiler column 20 is arranged in the vertical direction, and the tapered portion 21 is located at the upper end of the spoiler column 20. Specifically, the cavity 11 is arranged in the vertical direction, the cavity 11 is a cylindrical cavity, and the central axis of the air inlet 12 is arranged in the vertical direction. In this embodiment, the cavity 11 is arranged in the vertical direction, the spoiler column 20 is arranged in the vertical direction, and the tapered portion 21 is located at the upper end of the spoiler column 20, so that the airflow entering the cavity 11 through the air inlet 12 increases in flow velocity at the spoiler column 20, and negative pressure is generated inside the shell 10, so that the foam in the fermentation tank 70 can be sucked out through the overflow port, saving production costs.
[0030] In some embodiments, see Figure 1 and Figure 3 The bubble crushing structure 30 is located at the periphery of the spoiler column 20 and is respectively fixedly connected to the air inner wall and the spoiler column 20. In this embodiment, the bubble crushing structure 30 is respectively fixedly connected to the air inner wall and the spoiler column 20, so as to ensure that the foam entering the cavity 11 passes through the bubble crushing structure 30 during the process of moving toward the fermentation liquid outlet 13, and the foam is completely crushed by the bubble crushing structure 30 to form a fermentation liquid.
[0031] In some embodiments, see Figure 3The foam crushing structure 30 includes a plurality of crushing teeth 31, each crushing tooth 31 is evenly distributed around the axis of the spoiler column 20 on the periphery of the spoiler column 20. In this embodiment, the crushing teeth 31 are inclined blades, and a plurality of inclined blades are evenly distributed around the axis of the spoiler column 20 on the periphery of the spoiler column 20. A channel for the foam to pass through is formed between any two adjacent blades. When the foam passes through the channel, the blade crushes the foam. The blade is inclined to extend the time for the foam to pass through the channel, so that the foam passing through the channel can be completely crushed.
[0032] In some embodiments, see Figure 4 , the interface connected with the air inlet 12 is far away from the fermentation tank 70, and the interface connected with the fermentation liquid outlet 13 is close to the fermentation tank 70. In this embodiment, the two interfaces of the gas pipeline 82 are respectively arranged corresponding to the positions of the air inlet 12 and the fermentation liquid outlet 13, so as to facilitate communication with the air inlet 12 and the fermentation liquid outlet 13.
[0033] In some embodiments, see Figure 4 , the foam inlet 14 is connected to the overflow port through the first pipeline 40, the air inlet 12 is connected to the corresponding interface through the second pipeline 50, and the fermentation liquid outlet 13 is connected to the corresponding interface through the third pipeline 60. In this embodiment, the foam inlet 14 is connected to the overflow port through the first pipeline 40, so that the foam in the fermentation tank 70 is introduced through the first pipeline 40. The air inlet 12 is connected to the corresponding interface through the second pipeline 50, and the fermentation liquid outlet 13 is connected to the corresponding interface through the third pipeline 60, so that the fermentation liquid in the shell 10 can be introduced into the fermentation tank 70 through the third pipeline 60 and the gas pipeline 82, forming a recycling and saving production costs. Moreover, the sterile air introduced into the shell 10 will not have an adverse effect on the fermentation reaction in the fermentation tank 70, and can also provide oxygen to promote the fermentation reaction, which is practical.
[0034] In some embodiments, see Figure 4, a first control valve 41 for controlling the on-off of the first pipeline 40 is provided on the first pipeline 40. A second control valve 51 for controlling the on-off of the second pipeline 50 is provided on the second pipeline 50. A third control valve 61 for controlling the on-off of the third pipeline 60 is provided on the third pipeline 60. In this embodiment, in the early stage of the fermentation reaction in the fermenter 70, when it is not necessary to export the foam, the first control valve 41, the second control valve 51 and the third control valve 61 are all in a closed state. When there is a lot of foam in the fermenter 70 and it needs to be exported, the first control valve 41 and the second control valve 51 are opened, and sterile air is introduced into the shell 10 to form a negative pressure in the shell 10, so that the foam in the fermenter 70 is sucked out, and the foam is broken and converted into fermentation liquid by the bubble crushing structure 30. After the shell 10 absorbs and crushes the bubbles for a certain period of time, the third control valve 61 is opened, and the fermentation liquid in the shell 10 is introduced into the fermenter 70 for recycling, which saves costs and is convenient to operate.
[0035] Preferably, the opening degree of the first control valve 41 can be adjusted according to the amount of foam to be extracted, and similarly, the second control valve 51 and the third control valve 61 can be adjusted as well.
[0036] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A jet defoamer for fermentation equipment, characterized in that: include: The shell has a cavity, an air inlet is provided at the top of the shell, a fermentation liquid outlet is provided at the bottom, and a foam inlet is provided on the side wall of the shell; the air inlet and the fermentation liquid outlet are respectively connected to two interfaces provided on the gas pipeline; the foam inlet is connected to the overflow port provided on the side wall of the fermentation tank; A spoiler column, disposed in the cavity, the spoiler column having a tapered portion facing the air inlet; The foam crushing structure is arranged in the cavity and located below the foam inlet.
2. A jet defoamer for a fermentation device as claimed in claim 1, characterized in that: The spoiler column is arranged along the vertical direction, and the tapered portion is located at the upper end of the spoiler column.
3. The jet defoamer for fermentation equipment according to claim 1, characterized in that: The bubble-breaking structure is located at the periphery of the spoiler column and is fixedly connected to the inner wall of the cavity and the spoiler column respectively.
4. A jet defoamer for a fermentation device as claimed in claim 3, characterized in that: The bubble breaking structure comprises a plurality of breaking teeth, and each of the breaking teeth is evenly distributed on the outer periphery of the spoiler column around the axis of the spoiler column.
5. The jet defoamer for fermentation equipment according to claim 1, characterized in that: The interface communicated with the air inlet is far away from the fermentation tank, and the interface communicated with the fermentation liquid outlet is close to the fermentation tank.
6. The jet defoamer for fermentation equipment according to claim 1, characterized in that: The foam inlet is communicated with the overflow port through a first pipeline, the air inlet is communicated with the corresponding interface through a second pipeline, and the fermentation liquid outlet is communicated with the corresponding interface through a third pipeline.
7. A jet defoamer for a fermentation device as claimed in claim 6, characterized in that: The first pipeline is provided with a first control valve for controlling the on-off of the first pipeline; the second pipeline is provided with a second control valve for controlling the on-off of the second pipeline; the third pipeline is provided with a third control valve for controlling the on-off of the third pipeline.