Biological fermentation device with temperature control function

Abstract

The biological fermentation device with the temperature control function comprises a tank body, a temperature control assembly, a stirring assembly, a defoaming assembly, a circulating assembly and a detection assembly, the defoaming assembly, the stirring assembly and the detection assembly are sequentially arranged in the tank body from top to bottom, the temperature control assembly is arranged on the inner wall of the tank body, and the circulating assembly is arranged on the inner wall of the tank body. The temperature control assembly is arranged on the outer side of the stirring assembly, and the circulating assembly is arranged on one side of the tank body and communicates with the interior of the tank body. The temperature control assembly can flexibly adjust the temperature in the device, energy can be saved through a water bath heating mode, air sprayed out by the defoaming assembly can cover the whole fermentation liquid level, the defoaming effect is better, and fermentation liquid at the bottom of the fermentation device can be conveyed to the upper portion through the circulation assembly, so that mixing is more uniform.

Description

Technical Field

[0001] The invention belongs to the technical field of biological fermentation, and in particular relates to a biological fermentation device with a temperature control function. Background Art

[0002] Bio-fermentation engineering is an important part of bio-engineering. Microorganisms use carbohydrates to ferment and produce various industrial solvents and chemical raw materials. Fermentation is the earliest large-scale cell culture technology that people have known and used. The wide application of fermentation technology in the fields of medicine, light industry, food, agriculture, environmental protection, etc. has made this technology play an increasingly important role in the development of the national economy.

[0003] Fermentation environmental conditions have a great impact on biological fermentation, among which temperature is one of the important parameters of the fermentation process. Providing a suitable temperature can effectively improve the fermentation effect. However, in traditional fermentation devices, the heating device is generally set on one side of the fermentation tank, resulting in uneven temperature of the fermentation device. In addition, the heating device needs to work all the time during the heating process, which results in high energy consumption.

[0004] The biological fermentation in the fermentation device will continuously produce gas in the fermentation liquid. This type of gas will float up in the fermentation device and produce bubbles floating in the fermentation device. As the fermentation time increases, the generated foam will continue to increase. Such foam is difficult to eliminate automatically, which will not only affect the line of sight, but also hinder the gas circulation in the fermentation device, and also hinder the mixing of additives, forming a closed foam layer, resulting in the gas at the top of the fermentation device being unable to contact the fermentation liquid; the defoaming device in the prior art uses a rotating blade to rotate above the liquid surface to continuously break up the foam. This method is relatively simple and generally applicable, but this situation results in a fixed amount of fermentation liquid each time and cannot be adjusted. It is necessary to ensure that the fermentation liquid is under the defoaming blade and can be touched and broken by the defoaming blade, and the fermentation liquid cannot increase, otherwise the defoaming blade will be submerged, resulting in the inability to defoam. Therefore, the fermentation liquid capacity in the fermentation device each time is quantitative, the operation is not flexible, and the defoaming effect is not good.

[0005] Moreover, most of the fermentation devices in the prior art have poor stirring effects, and the fermentation liquid deposited at the bottom of the fermentation device is not easily stirred, resulting in uneven mixing of the fermentation liquid, which affects normal production. Summary of the invention

[0006] In view of this, the present invention aims to propose a biological fermentation device with a temperature control function to solve the problems of difficult temperature control, high energy consumption, poor defoaming effect and uneven mixing of the fermentation liquid in the fermentation device.

[0007] To achieve the above object, the technical solution of the present invention is achieved as follows:

[0008] A biological fermentation device with a temperature control function comprises a tank body, a temperature control component, a stirring component, a defoaming component, a circulation component and a detection component, wherein the defoaming component, the stirring component and the detection component are sequentially arranged inside the tank body from top to bottom, the temperature control component is arranged on the inner wall of the tank body, and the temperature control component is arranged outside the stirring component, the circulation component is arranged on one side of the tank body, and the circulation component is connected to the inside of the tank body.

[0009] Furthermore, the tank body comprises a first tank body and a second tank body, the second tank body is sleeved outside the first tank body, and a heat preservation layer is arranged between the first tank body and the second tank body. The heat preservation layer can keep the temperature inside the tank body warm.

[0010] Furthermore, the temperature control assembly includes an annular water tank, a plurality of heating pipes, a water inlet pipe, and a water outlet pipe. The annular water tank is arranged on the inner wall of the first tank body, and a plurality of evenly distributed heating pipes are arranged in the annular water tank.

[0011] The water inlet pipe is arranged above one side of the annular water tank, one end of the water inlet pipe is communicated with the inside of the annular water tank, and the other end of the water inlet pipe passes through the first tank body and the second tank body and extends to the outside of the second tank body;

[0012] The water outlet pipe is arranged below one side of the annular water tank away from the water inlet pipe, one end of the water outlet pipe is connected with the inside of the annular water tank, and the other end of the water outlet pipe passes through the first tank body and the second tank body and extends to the outside of the second tank body.

[0013] Furthermore, the water inlet pipe is provided with a water inlet valve, and the water outlet pipe is provided with a water outlet valve.

[0014] By adopting the water bath heating method, when the heating pipe heats the water in the annular water tank to the set temperature, due to the large specific heat capacity of water and good thermal insulation effect, the heating pipe can be suspended or work intermittently, which has a good energy-saving effect. When cooling is required, only part of the hot water in the annular water tank needs to be discharged from the water outlet pipe, and cold water is injected into the annular water tank from the water inlet pipe, so that the temperature can be adjusted quickly to meet the temperature requirements of fermentation of different strains, and the temperature in the device can be flexibly adjusted.

[0015] Furthermore, the stirring assembly includes a motor, a stirring shaft, and a stirring paddle. The mounting end of the motor is arranged at the top center of the second tank body. The output shaft of the motor is connected to one end of the stirring shaft. The other end of the stirring shaft passes through the second tank body and the first tank body and extends to the lower part of the first tank body. The stirring shaft is provided with a plurality of stirring paddles evenly distributed. The motor drives the stirring shaft to rotate, thereby driving the stirring paddle on the stirring shaft to rotate, thereby stirring the fermentation liquid.

[0016] Furthermore, the defoaming assembly includes a defoaming main pipe, a defoaming branch pipe, a ring pipe, a defoaming nozzle, and an air filter. The end of the defoaming main pipe away from the tank body is connected to an external high-pressure sterilization air pipeline, and the defoaming main pipe is arranged above the tank body;

[0017] A plurality of annular tubes are horizontally arranged on the inner wall of the first tank body through a bracket, and the diameters of the annular tubes gradually increase. A plurality of evenly distributed defoaming nozzles are arranged below the annular tubes, and each defoaming nozzle is located at a different arc position of the annular tube. The jetting direction of the defoaming nozzle is toward the liquid below the first tank body, and a plurality of micropores are arranged on the defoaming nozzle. The diameter of the annular tube gradually increases and the defoaming nozzles are located in different directions, so as to cover the bubbles on the entire fermentation liquid surface and achieve a better defoaming effect.

[0018] A number of defoaming branch pipes corresponding to the number of annular pipes are provided below the defoaming main pipe, one end of the defoaming branch pipe is provided below the defoaming main pipe and communicated with the interior of the defoaming main pipe, and the other end of the defoaming branch pipe passes through the second tank body and the first tank body and extends to the interior of the first tank body and communicates with the corresponding annular pipe;

[0019] The defoaming branch pipes are all provided with air inlet valves, the defoaming main pipe is provided with an air filter, and the air filter is arranged between the high-pressure sterilization air pipeline and the defoaming branch pipe.

[0020] The air sterilized by high pressure is further filtered through the air filter, and then enters the annular tube through the defoaming branch pipe. The air volume is adjusted by the air inlet valve, and is sprayed out from several microholes on the defoaming nozzle to puncture the bubbles on the surface of the fermentation liquid through the air flow.

[0021] Furthermore, the circulation assembly includes a circulation pipe and a circulation pump, one end of the circulation pipe penetrates the second tank body and the first tank body and extends to the lower part of the first tank body, the other end of the circulation pipe penetrates the second tank body and the first tank body and extends to the upper part of the first tank body, and is located between the defoaming assembly and the annular water sump, and the circulation pump is arranged on the circulation pipe. The fermentation liquid deposited at the bottom of the fermentation device can be transported to the upper part of the fermentation device along the circulation pipe through the circulation pump, thereby improving the stirring effect and ensuring normal fermentation and production.

[0022] Furthermore, the detection assembly is arranged at the lower part of the first tank, and the detection assembly includes a temperature sensor and a biosensor. The temperature sensor can detect the temperature in the fermentation device, so as to facilitate the adjustment of the fermentation temperature, and the biosensor can detect the fermentation state in the device.

[0023] The temperature sensor and the biosensor adopt the existing technology.

[0024] Furthermore, a feed pipe is provided on one side of the tank body, the feed pipe is communicated with the interior of the first tank body, and the feed pipe is arranged between the defoaming component and the annular water sump, and a feed valve is provided on the feed pipe;

[0025] A discharge pipe is provided below the tank body, the discharge pipe is communicated with the interior of the first tank body, and a discharge valve is provided on the discharge pipe;

[0026] A pressure gauge and an air outlet pipe are provided on the top of the tank body, and an air outlet valve is provided on the air outlet pipe; the pressure gauge displays the pressure in the device and controls the pressure in the device through the air outlet pipe;

[0027] A viewing window is provided on one side of the tank;

[0028] Preferably, the viewing window is industrial glass.

[0029] Furthermore, a support plate is provided under the second tank body, and support legs are provided at four corners of the bottom of the support plate.

[0030] Compared with the prior art, the biological fermentation device with temperature control function described in the present invention has the following advantages:

[0031] (1) The temperature control component of the present invention adopts a water bath heating method. Since water has a large specific heat capacity and a good heat preservation effect, the heating pipe can be suspended or operated intermittently, which has a good energy-saving effect. When cooling is required, only part of the hot water in the annular water tank needs to be discharged from the water outlet pipe, and cold water is injected into the annular water tank from the water inlet pipe, so that the temperature can be quickly adjusted to meet the temperature requirements of fermentation of different strains, and the temperature in the device can be flexibly adjusted;

[0032] (2) The defoaming component of the present invention sprays air through the micropores on the defoaming nozzle, thereby puncturing the bubbles on the surface of the fermentation liquid. At the same time, multiple annular tubes with different diameters are arranged, and the defoaming nozzles on the annular tubes face different directions. Therefore, the sprayed air covers a large area and can cover the entire fermentation liquid surface, thereby achieving a better defoaming effect.

[0033] (3) The circulation assembly of the present invention can transport the fermentation liquid deposited at the bottom of the fermentation device to the upper part of the fermentation device along the circulation pipe, thereby improving the stirring effect and ensuring normal fermentation and production. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0035] Figure 1 This is an overall schematic diagram of a biological fermentation device with temperature control function according to an embodiment of the present invention;

[0036] Figure 2 This is a schematic diagram of the interior of a biological fermentation device with temperature control function according to an embodiment of the present invention;

[0037] Figure 3 This is a bottom view schematic diagram of a circular tube of a biological fermentation device with a temperature control function according to an embodiment of the present invention.

[0038] Description of reference numerals:

[0039] 1. The first tank body; 2. The second tank body; 3. The insulation layer; 4. The annular water silo; 5. The heating pipe; 6. The water inlet pipe; 7. The water outlet pipe; 8. The water inlet valve; 9. The water outlet valve; 10. The motor; 11. The stirring shaft; 12. The stirring paddle; 13. The defoaming main pipe; 14. The defoaming branch pipe; 15. The annular pipe; 16. The defoaming nozzle; 17. The air filter; 18. The bracket; 19. The air inlet valve; 20. The circulation pipe; 21. The circulation pump; 22. The temperature sensor; 23. The biosensor; 24. The feed pipe; 25. The feed valve; 26. The discharge pipe; 27. The discharge valve; 28. The pressure gauge; 29. ​​The air outlet pipe; 30. The air outlet valve; 31. The support plate; 32. The support leg; 33. The viewing window. DETAILED DESCRIPTION

[0040] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0041] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and the like are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", and the like may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0042] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0043] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0044] like Figures 1 to 3 As shown, a biological fermentation device with a temperature control function includes a tank body, a temperature control component, a stirring component, a defoaming component, a circulation component, and a detection component. The defoaming component, the stirring component, and the detection component are arranged inside the tank body from top to bottom, the temperature control component is arranged on the inner wall of the tank body, and the temperature control component is arranged on the outside of the stirring component. The circulation component is arranged on one side of the tank body, and the circulation component is connected to the inside of the tank body.

[0045] The tank body comprises a first tank body 1 and a second tank body 2. The second tank body 2 is sleeved outside the first tank body 1. A heat preservation layer 3 is arranged between the first tank body 1 and the second tank body 2. The heat preservation layer 3 can keep the temperature inside the tank body warm.

[0046] The temperature control assembly includes an annular water tank 4, a plurality of heating tubes 5, a water inlet pipe 6, and a water outlet pipe 7. The annular water tank 4 is arranged on the inner wall of the first tank body 1, and a plurality of evenly distributed heating tubes 5 are arranged in the annular water tank 4.

[0047] The water inlet pipe 6 is arranged above one side of the annular water tank 4, one end of the water inlet pipe 6 is communicated with the inside of the annular water tank 4, and the other end of the water inlet pipe 6 passes through the first tank body 1 and the second tank body 2 and extends to the outside of the second tank body 2;

[0048] The water outlet pipe 7 is arranged below the side of the annular water tank 4 away from the water inlet pipe 6, one end of the water outlet pipe 7 is connected to the inside of the annular water tank 4, and the other end of the water outlet pipe 7 passes through the first tank body 1 and the second tank body 2 and extends to the outside of the second tank body 2.

[0049] The water inlet pipe 6 is provided with a water inlet valve 8 , and the water outlet pipe 7 is provided with a water outlet valve 9 .

[0050] By adopting the water bath heating method, when the heating tube 5 heats the water in the annular water tank 4 to the set temperature, due to the large specific heat capacity of water and the good heat preservation effect, the heating tube 5 can be suspended or work intermittently, which has a good energy-saving effect. When cooling is required, it is only necessary to discharge part of the hot water in the annular water tank 4 from the water outlet pipe 7 and inject cold water into the annular water tank 4 from the water inlet pipe 6, so that the temperature can be quickly adjusted to meet the temperature requirements of fermentation of different strains, and the temperature in the device can be flexibly adjusted.

[0051] The stirring assembly includes a motor 10, a stirring shaft 11, and a stirring paddle 12. The mounting end of the motor 10 is arranged at the top center of the second tank body 2. The output shaft of the motor 10 is connected to one end of the stirring shaft 11. The other end of the stirring shaft 11 penetrates the second tank body 2 and the first tank body 1 and extends to the lower part of the first tank body 1. The stirring shaft 11 is provided with a plurality of evenly distributed stirring paddles 12. The motor 10 drives the stirring shaft 11 to rotate, thereby driving the stirring paddle 12 on the stirring shaft 11 to rotate, thereby stirring the fermentation liquid.

[0052] The defoaming assembly includes a defoaming main pipe 13, a defoaming branch pipe 14, a ring pipe 15, a defoaming nozzle 16, and an air filter 17. The end of the defoaming main pipe 13 away from the tank body is connected to an external high-pressure sterilization air pipeline, and the defoaming main pipe 13 is arranged above the tank body.

[0053] A plurality of annular tubes 15 are horizontally arranged on the inner wall of the first tank body 1 through a bracket 18, and the diameters of the plurality of annular tubes 15 gradually increase. A plurality of evenly distributed defoaming nozzles 16 are arranged below the annular tubes 15, and each defoaming nozzle 16 is located at a different arc position of the annular tube 15. The jetting direction of the defoaming nozzle 16 is toward the liquid below the first tank body 1, and a plurality of micropores are arranged on the defoaming nozzle 16. The diameter of the annular tube 15 gradually increases and the defoaming nozzle 16 is located in different directions, so as to cover the bubbles on the entire fermentation liquid surface and achieve a better defoaming effect.

[0054] Defoaming branch pipes 14 corresponding to the number of the annular pipes 15 are provided below the defoaming main pipe 13, one end of the defoaming branch pipe 14 is provided below the defoaming main pipe 13 and communicated with the interior of the defoaming main pipe 13, and the other end of the defoaming branch pipe 14 passes through the second tank body 2 and the first tank body 1 and extends to the interior of the first tank body 1 and communicates with the corresponding annular pipe 15;

[0055] The defoaming branch pipes 14 are each provided with an air inlet valve 19 , the defoaming main pipe 13 is provided with an air filter 17 , and the air filter 17 is arranged between the high-pressure sterilization air duct and the defoaming branch pipe 14 .

[0056] The air sterilized by high pressure is further filtered through the air filter 17, and then enters the annular tube 15 through the defoaming branch pipe 14, and the air volume is adjusted by the air inlet valve 19, and is sprayed out from a number of micropores on the defoaming nozzle 16, and the bubbles on the surface of the fermentation liquid are punctured by the air flow.

[0057] The circulation assembly includes a circulation pipe 20 and a circulation pump 21. One end of the circulation pipe 20 passes through the second tank body 2 and the first tank body 1 and extends to the lower part of the first tank body 1. The other end of the circulation pipe 20 passes through the second tank body 2 and the first tank body 1 and extends to the upper part of the first tank body 1 and is located between the defoaming assembly and the annular water sump 4. The circulation pump 21 is arranged on the circulation pipe 20. The fermentation liquid deposited at the bottom of the fermentation device can be transported to the upper part of the fermentation device along the circulation pipe 20 through the circulation pump 21, thereby improving the stirring effect and ensuring normal fermentation and production.

[0058] The detection assembly is arranged at the lower part of the first tank 1, and includes a temperature sensor 22 and a biosensor 23. The temperature sensor 22 can detect the temperature in the fermentation device, so as to facilitate the adjustment of the fermentation temperature, and the biosensor 23 can detect the fermentation state in the device.

[0059] The temperature sensor 22 and the biosensor 23 adopt the existing technology.

[0060] A feed pipe 24 is provided on one side of the tank body, the feed pipe 24 is communicated with the interior of the first tank body 1, and the feed pipe 24 is arranged between the defoaming component and the annular water tank 4, and a feed valve 25 is provided on the feed pipe 24;

[0061] A discharge pipe 26 is provided below the tank body, the discharge pipe 26 is communicated with the interior of the first tank body 1, and a discharge valve 27 is provided on the discharge pipe 26;

[0062] A pressure gauge 28 and an air outlet pipe 29 are provided on the top of the tank body, and an air outlet valve 30 is provided on the air outlet pipe 29; the pressure gauge 28 displays the pressure in the device and controls the pressure in the device through the air outlet pipe 29;

[0063] A visual window 33 is provided on one side of the tank;

[0064] Preferably, the visual window 33 is made of industrial glass.

[0065] A support plate 31 is disposed below the second tank body 2 , and support legs 32 are disposed at four corners of the bottom of the support plate 31 .

[0066] In a specific implementation, the material enters the first tank body 1 from the feed pipe 24, and the motor 10 rotates the stirring shaft 11 and the stirring paddle 12 to achieve stirring of the material; the fermentation liquid at the bottom of the first tank body 1 is transported to the upper part by the circulation pump 21 to prevent the material from always being deposited at the bottom of the first tank body 1 and being unable to be fully mixed; the temperature in the first tank body 1 is detected by the temperature sensor 22. When the temperature is too low, the heating tube 5 is used to heat the water in the annular water bin 4, thereby raising the temperature in the first tank body 1. When the temperature reaches the set temperature, the heating tube 5 is stopped, and the temperature in the first tank body 1 is kept warm by the water temperature and the insulation effect of the insulation layer 3. When the temperature reaches the set temperature, the heating tube 5 is stopped, and the temperature in the first tank body 1 is kept warm by the water temperature and the insulation effect of the insulation layer 3. When the temperature is too high, part of the hot water in the annular water tank 4 is discharged from the water outlet pipe 7, and cold water is input into the annular water tank 4 from the water inlet pipe 6 to achieve cooling until the appropriate temperature is reached; during the fermentation process, bubbles will be generated on the surface of the fermentation liquid. The air inlet valve 19 is opened to allow the air to be filtered through the air filter 17, and then enter the first tank body 1 along the defoaming main pipe 13, the defoaming branch pipe 14, and the annular pipe 15, and be sprayed out from the micropores of the defoaming nozzle 16, and the bubbles are punctured by air to achieve defoaming; the pressure gauge 28 can observe the pressure in the tank body. When the pressure is too high, the air outlet pipe 29 is used to exhaust gas to reduce the pressure in the tank body; the biosensor 23 can detect the fermentation state in the fermentation device in real time.

[0067] 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, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A biological fermentation device with temperature control function, characterized in that: It includes a tank body, a temperature control component, a stirring component, a defoaming component, a circulation component, and a detection component. The defoaming component, the stirring component, and the detection component are arranged inside the tank body from top to bottom. The temperature control component is arranged on the inner wall of the tank body, and the temperature control component is arranged on the outside of the stirring component. The circulation component is arranged on one side of the tank body, and the circulation component is connected to the inside of the tank body.

2. A biological fermentation device with temperature control function according to claim 1, characterized in that: The tank body comprises a first tank body (1) and a second tank body (2), wherein the second tank body (2) is sleeved outside the first tank body (1), and a heat-insulating layer (3) is provided between the first tank body (1) and the second tank body (2).

3. The biological fermentation device with temperature control function according to claim 1, characterized in that: The temperature control component comprises an annular water tank (4), a plurality of heating tubes (5), a water inlet pipe (6), and a water outlet pipe (7); the annular water tank (4) is arranged on the inner wall of the first tank body (1), and a plurality of evenly distributed heating tubes (5) are arranged in the annular water tank (4); A water inlet pipe (6) is arranged above one side of the annular water tank (4), one end of the water inlet pipe (6) is in communication with the interior of the annular water tank (4), and the other end of the water inlet pipe (6) passes through the first tank body (1) and the second tank body (2) and extends to the exterior of the second tank body (2); The water outlet pipe (7) is arranged below a side of the annular water tank (4) away from the water inlet pipe (6); one end of the water outlet pipe (7) is connected to the inside of the annular water tank (4); the other end of the water outlet pipe (7) penetrates the first tank body (1) and the second tank body (2) and extends to the outside of the second tank body (2).

4. The biological fermentation device with temperature control function according to claim 3, characterized in that: The water inlet pipe (6) is provided with a water inlet valve (8), and the water outlet pipe (7) is provided with a water outlet valve (9).

5. The biological fermentation device with temperature control function according to claim 1, characterized in that: The stirring assembly comprises a motor (10), a stirring shaft (11), and a stirring paddle (12); the mounting end of the motor (10) is arranged at the top center of the second tank body (2); the output shaft of the motor (10) is connected to one end of the stirring shaft (11); the other end of the stirring shaft (11) penetrates the second tank body (2) and the first tank body (1) and extends to the lower part of the first tank body (1); and a plurality of stirring paddles (12) are evenly distributed on the stirring shaft (11).

6. The biological fermentation device with temperature control function according to claim 1, characterized in that: The defoaming assembly comprises a defoaming main pipe (13), a defoaming branch pipe (14), a ring pipe (15), a defoaming nozzle (16), and an air filter (17); one end of the defoaming main pipe (13) away from the tank body is connected to an external high-pressure sterilization air pipeline, and the defoaming main pipe (13) is arranged above the tank body; A plurality of annular tubes (15) are horizontally arranged on the inner wall of the first tank body (1) via a bracket (18), and the diameters of the plurality of annular tubes (15) gradually increase. A plurality of evenly distributed defoaming nozzles (16) are arranged below the annular tubes (15), and each defoaming nozzle (16) is located at a different arc position of the annular tube (15). The defoaming nozzle (16) sprays toward the liquid below the first tank body (1), and a plurality of micropores are arranged on the defoaming nozzle (16); A number of defoaming branch pipes (14) corresponding to the number of the annular pipes (15) are provided below the defoaming main pipe (13); one end of the defoaming branch pipe (14) is provided below the defoaming main pipe (13) and is communicated with the interior of the defoaming main pipe (13); the other end of the defoaming branch pipe (14) passes through the second tank body (2) and the first tank body (1) and extends to the interior of the first tank body (1) to communicate with the corresponding annular pipe (15); An air inlet valve (19) is provided on each defoaming branch pipe (14), an air filter (17) is provided on the defoaming main pipe (13), and the air filter (17) is arranged between the high-pressure sterilization air pipeline and the defoaming branch pipe (14).

7. The biological fermentation device with temperature control function according to claim 1, characterized in that: The circulation assembly comprises a circulation pipe (20) and a circulation pump (21); one end of the circulation pipe (20) penetrates the second tank body (2) and the first tank body (1) and extends to the lower part of the first tank body (1); the other end of the circulation pipe (20) penetrates the second tank body (2) and the first tank body (1) and extends to the upper part of the first tank body (1) and is located between the defoaming assembly and the annular water tank (4); and the circulation pump (21) is arranged on the circulation pipe (20).

8. The biological fermentation device with temperature control function according to claim 1, characterized in that: The detection component is arranged at the lower part of the interior of the first tank body (1), and comprises a temperature sensor (22) and a biosensor (23).

9. The biological fermentation device with temperature control function according to claim 1, characterized in that: A feed pipe (24) is provided on one side of the tank body, the feed pipe (24) is in communication with the interior of the first tank body (1), and the feed pipe (24) is arranged between the defoaming component and the annular water bin (4), and a feed valve (25) is provided on the feed pipe (24); A discharge pipe (26) is provided below the tank body, the discharge pipe (26) is in communication with the interior of the first tank body (1), and a discharge valve (27) is provided on the discharge pipe (26); A pressure gauge (28) and an air outlet pipe (29) are provided on the top of the tank body, and an air outlet valve (30) is provided on the air outlet pipe (29); A viewing window (33) is provided on one side of the tank body.

10. The biological fermentation device with temperature control function according to claim 2, characterized in that: A support plate (31) is provided below the second tank body (2), and support legs (32) are provided at four corners of the bottom of the support plate (31).

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