Far infrared heat preservation cultivation container

Abstract

The invention belongs to the technical field of microbe culture, and particularly relates to a far infrared heat preservation culture container which comprises a movable base and a microbe culture tank fixedly arranged at the top of the movable base through a support, an air inlet assembly is connected to the outer side of the bottom end of the microbe culture tank in a penetrating mode, and a supporting base column is fixedly arranged at the bottom of an inner cavity of the microbe culture tank. Hot air can be used for carrying out auxiliary heating on a culture solution, so that heating is more uniform, the temperature of the culture solution at different positions in the microorganism culture tank can be detected through a temperature sensor, and when the temperature of the culture solution at the corresponding area is too low and does not reach the normal temperature, the culture solution is heated. Gas to be blown out can be secondarily heated through a grating type heating plate in a heating type lifting disc, the gas is sprayed out from a first nozzle and a second nozzle after being secondarily heated, culture solutions in corresponding areas can be subjected to compensation type heating, the temperatures of the culture solutions in different positions can be made to be the same, and therefore the culture solutions can be heated more accurately. And the heating uniformity can be further improved.

Description

Technical Field

[0001] This invention belongs to the field of microbial culture technology, specifically relating to a far-infrared heat preservation culture container. Background Technology

[0002] Microbial cultivation is a common practice in scientific experiments and industrial production. Artificially prepared culture media enable the rapid reproduction of certain microorganisms. Commonly used vessels for microbial cultivation include test tubes, petri dishes, and tanks. In industrial fermentation cultivation of microorganisms, liquid culture media are frequently used. During cultivation, sterile air and culture media need to be added regularly. To achieve better cultivation results, it is essential to ensure that the air and nutrients in the culture medium are uniformly mixed. Existing microbial cultivation containers generally use mechanical agitators. The high-speed rotation of the agitator generates shear force to promote mixing and achieve uniform culture. However, this method has significant drawbacks: First, the high-speed rotation of the mechanical agitator generates high shear force, which can damage shear-sensitive microorganisms such as filamentous fungi, mammalian cells, and some engineered bacteria. Shear-sensitive microorganisms are prone to cell membrane rupture, hyphae breakage, or metabolic abnormalities due to mechanical shearing, severely affecting cultivation efficiency. Second, the agitator relies solely on eddy diffusion to renew the gas-liquid interface. The increase in dissolved oxygen level depends on high rotation speed, resulting in low oxygen transfer efficiency and an inability to maintain high dissolved oxygen levels with low energy consumption.

[0003] To address the aforementioned issues, this application proposes a far-infrared heat-insulating incubation container. Summary of the Invention

[0004] This invention provides a far-infrared heat-insulating incubation container, which can effectively solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a far-infrared heat preservation incubation container, comprising a movable base and a microbial incubation tank fixedly mounted on the top of the movable base by a bracket, wherein an air intake component is connected through the outer side of the bottom of the microbial incubation tank, a support column is fixedly provided at the bottom of the inner cavity of the microbial incubation tank, a pneumatic mixing mechanism is fixedly provided at the top of the support column, temperature sensors are provided on the outer side of the pneumatic mixing mechanism and the outer side of the support column, and an oxygen concentration sensor and an exhaust component are fixedly provided at the top of the inner cavity of the microbial incubation tank, respectively.

[0006] The pneumatic mixing mechanism adopts a modular design and is composed of multiple pneumatic mixing units. Each pneumatic mixing unit includes a hollow upright and an air distribution cylinder set at the top of the hollow upright. Guide columns are symmetrically fixed at the bottom of the air distribution cylinder. A heated lifting plate is sleeved on the outside of the guide columns and the hollow upright. A spring-loaded air supply pipe is fixedly connected between the top of the heated lifting plate and the air distribution cylinder. A grid-type mixing plate is rotatably mounted on the outside of the heated lifting plate. A first nozzle and a mixing blade are respectively provided at the bottom and outside of the grid-type mixing plate. A second nozzle is provided on the outside of the mixing blade.

[0007] Preferably, the microbial culture tank includes a tank body and a feed inlet with a sealing cover at the top of the tank body, a discharge port with a discharge valve at the bottom of the tank body, a heating chamber on the tank body, and a heating component inside the heating chamber.

[0008] Preferably, the inner wall of the microbial culture tank is provided with a far-infrared heat-insulating coating.

[0009] Preferably, the air intake assembly includes an annular pipe and an air intake pipe fixed to the outer side of the bottom end of the tank via a branch pipe. An air intake port is provided on the outer side of the annular pipe, and a flow control valve is provided on the air intake port.

[0010] Preferably, the air inlet pipe is connected between the tank body and the topmost pneumatic mixing unit.

[0011] Preferably, the exhaust assembly includes an exhaust section fixedly disposed at the top of the microbial culture tank and an exhaust port opened on one side of the exhaust section. A pin is inserted through the top of the exhaust section, and a piston assembly and a spring are respectively disposed at the bottom end and the outer side of the bottom end of the pin.

[0012] Preferably, the heated lifting plate includes a disc body that is slidably sleeved on the outside of the hollow upright and the guide column. The disc body has an air collection chamber inside, and a grid-type heating plate is fixedly installed in the inner cavity of the air collection chamber. A gas delivery port is opened on the outside of the disc body.

[0013] Preferably, both the first nozzle and the second nozzle are nozzles with a check valve to prevent backflow.

[0014] Preferably, the spring-type gas pipe includes a spring-type pipe body, on which a gas delivery channel is provided, and the upper and lower ends of the spring-type pipe body are respectively connected to the gas distribution cylinder and the disc body.

[0015] Preferably, the grid-type mixing disk includes an annular gas collecting component and a first and second gas outlet pipe connected to the outside of the disk body in a rotatable sealing manner, and a gas distribution branch pipe is connected through the annular gas collecting component, the first and second gas outlet pipes.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] 1. When oxygen is supplied to the pneumatic mixing mechanism through the air intake assembly, the gas first flows into the gas distributor on the pneumatic mixing unit through the air intake pipe, then flows into the heated lifting plate through the spring-type gas delivery pipe, and finally flows into the grid-type mixing plate from the gas delivery port on the outside of the heated lifting plate. The gas is ejected from the first nozzle at the bottom of the grid-type mixing plate and the second nozzle on the outside of the grid-type mixing plate. The gas ejected from the first nozzle and the second nozzle can not only form a uniform bubble group by spraying airflow, expand the gas-liquid contact area and improve oxygen transfer efficiency, but also use the airflow ejected from the first nozzle and the second nozzle to pneumatically mix the culture medium.

[0018] 2. The counter-propulsion force of the airflow ejected from the first nozzle can lift the grid-type mixing plate; conversely, when the blowing stops, the grid-type mixing plate will automatically move down and reset under the elastic force of the spring-loaded air supply pipe. High-pressure gas is intermittently blown into the pneumatic mixing unit through the air intake component, causing the grid-type mixing plate to move up and down repeatedly within the microbial culture tank. This reciprocating motion of the grid-type mixing plate within the microbial culture tank can rapidly mix the culture medium. The counter-propulsion force of the airflow ejected from the second nozzle can drive the grid-type mixing plate to rotate, allowing it to perform low-speed stirring and mixing of the culture medium during the lifting and mixing process. This further improves the mixing effect and effectively prevents microbial accumulation that would slow down microbial reproduction. Moreover, this mixing method is relatively gentle, and compared to the traditional method of using a mechanical stirring paddle to generate shear force to promote mixing, it will not damage shear-sensitive microorganisms.

[0019] 3. The gas introduced into the microbial culture tank first enters the heating chamber through the air inlet assembly. While heating the culture medium in the microbial culture tank, the heating assembly can also heat the gas entering the heating chamber. After being heated by the heating assembly, the gas is then ejected from the first and second nozzles. The hot gas can be used to assist in heating the culture medium, making the heating more uniform. The temperature sensor can detect the temperature of the culture medium at different locations in the microbial culture tank. When the temperature of the culture medium in a certain area is too low and has not reached the normal temperature, the grid-type heating plate inside the heating lifting plate can reheat the gas that is about to be blown out. After being reheated, the gas is ejected from the first and second nozzles, which can compensate for the heating of the culture medium in the corresponding area, so that the temperature of the culture medium in different locations is the same, which can further improve the heating uniformity.

[0020] 4. When air is blown into the microbial culture tank, the air pressure can push the piston assembly on the exhaust assembly upward. After the piston assembly is pushed upward, the exhaust gas can be discharged from the exhaust port on one side of the exhaust section. When the blowing into the microbial culture tank stops, the piston assembly automatically moves down to reset under the action of the spring, which can automatically seal the microbial culture tank and prevent pathogens from entering the microbial culture tank. Attached Figure Description

[0021] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0022] Figure 1 This is a schematic diagram of the overall structure of a far-infrared heat-insulating cultivation container according to the present invention;

[0023] Figure 2 This is a cross-sectional view of a far-infrared heat-insulating incubation container according to the present invention.

[0024] Figure 3 This is a schematic cross-sectional view of the microbial culture tank in this invention;

[0025] Figure 4 For the present invention Figure 3 Enlarged structural diagram at point A in the diagram;

[0026] Figure 5 For the present invention Figure 3 Enlarged structural diagram at point B in the diagram;

[0027] Figure 6 This is a schematic diagram of the pneumatic mixing mechanism in this invention;

[0028] Figure 7 This is a schematic diagram of the connection structure between the air intake pipe and the pneumatic mixing unit in this invention;

[0029] Figure 8 This is a cross-sectional view of the pneumatic mixing unit in this invention.

[0030] Figure 9 For the present invention Figure 8 A magnified structural diagram at point C in the diagram.

[0031] In the picture: 1. Movable base;

[0032] 2. Microbial culture tank; 201. Tank body; 202. Feed inlet; 203. Discharge outlet; 204. Heating chamber; 205. Heating components;

[0033] 3. Intake assembly; 301. Annular fitting; 302. Intake pipe; 303. Intake port; 304. Flow control valve;

[0034] 4. Supporting columns;

[0035] 5. Pneumatic mixing mechanism; 501. Hollow upright; 502. Gas distribution cylinder; 503. Guide column; 504. Heated lifting plate; 5041. Disc body; 5042. Gas collection chamber; 5043. Grille-type heating plate; 5044. Gas delivery port; 505. Spring-type gas delivery pipe; 5051. Spring-type pipe body; 5052. Gas delivery channel; 506. Grille-type mixing plate; 5061. Annular gas collection component; 5062. First gas outlet pipe; 5063. Second gas outlet pipe; 5064. Gas distribution branch pipe; 507. First nozzle; 508. Mixing blade; 509. Second nozzle;

[0036] 6. Temperature sensor;

[0037] 7. Oxygen concentration sensor;

[0038] 8. Exhaust assembly; 801. Exhaust section; 802. Exhaust port; 803. Pin; 804. Piston assembly; 805. Spring component. Detailed Implementation

[0039] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0040] Examples, such as Figure 1-9 As shown, a far-infrared heat preservation incubation container includes a movable base 1 and a microbial incubation tank 2 fixedly mounted on the top of the movable base 1 by a bracket. An air inlet component 3 is connected through the outer side of the bottom of the microbial incubation tank 2. A support column 4 is fixedly provided at the bottom of the inner cavity of the microbial incubation tank 2. A pneumatic mixing mechanism 5 is fixedly provided at the top of the support column 4. Temperature sensors 6 are provided on the outer side of the pneumatic mixing mechanism 5 and the outer side of the support column 4. An oxygen concentration sensor 7 and an exhaust component 8 are fixedly provided at the top of the inner cavity of the microbial incubation tank 2, respectively.

[0041] The pneumatic mixing mechanism 5 adopts a modular design, consisting of multiple pneumatic mixing units. Each pneumatic mixing unit includes a hollow upright 501 and an air distribution cylinder 502 located at the top of the hollow upright 501. Guide columns 503 are symmetrically fixed at the bottom of the air distribution cylinder 502. A heated lifting plate 504 is sleeved around the guide columns 503 and the hollow upright 501. A spring-loaded air supply pipe 505 is fixedly connected between the top of the heated lifting plate 504 and the air distribution cylinder 502. A grid-type mixing plate 506 is rotatably mounted on the outside of the heated lifting plate 504. A first nozzle 507 is located at the bottom and outer side of the grid-type mixing plate 506, respectively. The mixing blade 508 has a second nozzle 509 on its outer side. When the air intake assembly 8 blows air into the pneumatic mixing mechanism 5 to supplement oxygen, the gas first flows into the air distributor 502 on the pneumatic mixing unit through the air intake pipe 302, then flows into the heated lifting plate 504 through the spring-type air supply pipe 505, and finally flows into the grid-type mixing plate 506 from the gas delivery port 5044 on the outer side of the heated lifting plate 504. The gas is then ejected from the first nozzle 507 at the bottom of the grid-type mixing plate 506 and the second nozzle 509 on the outer side of the grid-type mixing plate 506. Not only can it spray airflow to form a uniform bubble cluster, expanding the gas-liquid contact area and improving oxygen transfer efficiency, but it can also use the airflow sprayed by the first nozzle 507 and the second nozzle 509 to pneumatically mix the culture medium. At the same time, the reaction force of the airflow sprayed by the first nozzle 507 can lift the grid-type mixing plate 506. Conversely, when the blowing stops, the grid-type mixing plate 506 will automatically move down and reset under the elastic force of the spring-loaded gas supply pipe 505. By intermittently blowing pulsed gas into the pneumatic mixing unit through the air inlet component 3, the grid-type mixing plate 506 can reciprocate up and down within the microbial culture tank 2. The grid-type mixing plate 506 reciprocates within the microbial culture tank 2, rapidly mixing the culture medium. The counter-propulsion force of the airflow ejected by the second nozzle 509 drives the grid-type mixing plate 506 to rotate, allowing it to perform low-speed mixing of the culture medium during the lifting and mixing process. This further improves the mixing effect, effectively preventing microbial accumulation and slow microbial reproduction. Moreover, this mixing method is gentler than the traditional method of using a mechanical agitator to generate shear force for mixing at high speed, and it does not damage shear-sensitive microorganisms.

[0042] As a further embodiment of the above invention: the microbial culture tank 2 includes a tank body 201 and a feed inlet 202 with a sealing cover plate at the top of the tank body 201. The bottom of the tank body 201 is provided with a discharge port 203 with a discharge valve. A heating chamber 204 is provided on the tank body 201. A heating component 205 is provided in the heating chamber 204. The gas introduced into the microbial culture tank 2 first enters the heating chamber 204 through the air inlet component 3. While heating the culture medium in the microbial culture tank 2, the heating component 205 can also heat the gas entering the heating chamber 204. After being heated by the heating component 205, the gas is sprayed out from the first nozzle 507 and the second nozzle 509. The hot gas can be used to assist in heating the culture medium, making the heating more uniform.

[0043] As a further embodiment of the above invention: the inner wall of the microbial culture tank 2 is provided with a far-infrared heat-insulating coating, which can improve the heat preservation capacity of the microbial culture tank 2.

[0044] As a further embodiment of the above invention: the air intake assembly 3 includes an annular pipe 301 and an air intake pipe 302, which are fixed to the outer side of the bottom end of the tank body 201 by a branch pipe. An air inlet 303 is provided on the outer side of the annular pipe 301, and a flow control valve 304 is provided on the air inlet 303. The flow rate of the gas introduced can be controlled by the flow control valve 304, so as to facilitate the control of the airflow size.

[0045] As a further embodiment of the above invention: the air inlet pipe 302 is connected through the tank 201 and the pneumatic mixing unit at the top.

[0046] As a further embodiment of the above invention: the exhaust assembly 8 includes an exhaust section 801 fixedly installed at the top of the microbial culture tank 2 and an exhaust port 802 opened on one side of the exhaust section 801. A pin 803 is inserted through the top of the exhaust section 801. A piston assembly 804 and a spring 805 are respectively provided at the bottom end and the outer side of the bottom end of the pin 803. When air is blown into the microbial culture tank 2, the air pressure can push the piston assembly 804 on the exhaust assembly 8 upward. After the piston assembly 804 is pushed upward, the exhaust gas can be discharged from the exhaust port 802 on the side of the exhaust section 801. When the blowing into the microbial culture tank 2 stops, the piston assembly 804 automatically moves down to reset under the action of the spring 805, which can automatically seal the microbial culture tank 2 and prevent pathogens from entering the microbial culture tank 2.

[0047] As a further embodiment of the above invention: the heating lifting plate 504 includes a disc body 5041 slidably sleeved on the outside of the hollow upright 501 and the guide column 503. A gas collecting chamber 5042 is opened inside the disc body 5041. A grid-type heating plate 5043 is fixedly installed in the inner cavity of the gas collecting chamber 5042. A gas delivery port 5044 is opened on the outside of the disc body 5041. The temperature of the culture medium at different positions in the microbial culture tank 2 can be detected by the temperature sensor 6. When the temperature of the culture medium in the corresponding area is too low and has not reached the normal temperature, the grid-type heating plate 5043 inside the heating lifting plate 504 can reheat the gas that is about to be blown out. After the gas is reheated, it is sprayed out from the first nozzle 507 and the second nozzle 509, which can compensate for the heating of the culture medium in the corresponding area, so that the temperature of the culture medium in different positions is the same, and the heating uniformity can be further improved.

[0048] As a further embodiment of the above invention: both the first nozzle 507 and the second nozzle 509 are nozzles with check valves and anti-backflow function, which can prevent liquid backflow in the microbial culture tank 2.

[0049] As a further embodiment of the above invention: the spring-type gas pipe 505 includes a spring-type pipe body 5051, a gas delivery channel 5052 is provided on the spring-type pipe body 5051, and the upper and lower ends of the spring-type pipe body 5051 are respectively connected to the gas distribution cylinder 502 and the disc body 5041, and gas can be delivered through the gas delivery channel 5052.

[0050] As a further embodiment of the above invention: the grid-type mixing plate 506 includes an annular gas collecting component 5061, a first gas outlet pipe 5062, and a second gas outlet pipe 5063 that are rotatably and sealed to the outside of the disc body 5041. A gas distribution branch pipe 5064 is connected through the annular gas collecting component 5061, the first gas outlet pipe 5062, and the second gas outlet pipe 5063. When the grid-type mixing plate 506 is raised and lowered, its structure can promote the renewal of the gas-liquid interface. For example, when combined with bubble ventilation, it can improve the dissolved oxygen level.

[0051] In specific implementation: When oxygen is added to the pneumatic mixing mechanism 5 by blowing air through the air intake component 8, the gas first flows into the gas distribution cylinder 502 on the pneumatic mixing unit through the air intake pipe 302, then flows into the heated lifting plate 504 through the spring-type gas delivery pipe 505, and finally flows into the grid-type mixing plate 506 from the gas delivery port 5044 on the outside of the heated lifting plate 504. It is then ejected from the first nozzle 507 at the bottom of the grid-type mixing plate 506 and the second nozzle 509 on the outside of the grid-type mixing plate 506. The gas ejected from the first nozzle 507 and the second nozzle 509 can not only form a uniform bubble group by spraying airflow, expand the gas-liquid contact area, and improve oxygen transfer efficiency, but also use the airflow sprayed by the first nozzle 507 and the second nozzle 509 to pneumatically mix the culture medium.

[0052] The counter-propulsion force of the airflow ejected by the first nozzle 507 can lift the grid-type mixing plate 506. Conversely, when the blowing stops, the grid-type mixing plate 506 will automatically move down and reset under the elastic force of the spring-loaded air supply pipe 505. The intermittent blowing of pulsed gas into the pneumatic mixing unit through the air intake component 3 can make the grid-type mixing plate 506 move up and down repeatedly in the microbial culture tank 2. The reciprocating movement of the grid-type mixing plate 506 in the microbial culture tank 2 can quickly mix the culture medium in the microbial culture tank 2. The counter-propulsion force of the airflow ejected by the second nozzle 509 can drive the grid-type mixing plate 506 to rotate, so that the grid-type mixing plate 506 can perform low-speed stirring and mixing of the culture medium during the lifting and mixing process. This can further improve the mixing effect, effectively avoid the accumulation of microorganisms and slow microbial reproduction, and this mixing method is relatively gentle. Compared with the traditional method of promoting mixing by high-speed rotation of mechanical stirring paddle to generate shear force, it will not damage shear-sensitive microorganisms.

[0053] The gas introduced into the microbial culture tank 2 first enters the heating chamber 204 through the air inlet assembly 3. The heating assembly 205 heats the culture medium in the microbial culture tank 2 while simultaneously heating the gas entering the heating chamber 204. After being heated by the heating assembly 205, the gas is then ejected from the first nozzle 507 and the second nozzle 509. This hot gas can be used to assist in heating the culture medium, making the heating more uniform. The temperature sensor 6 can detect the temperature of the culture medium at different locations within the microbial culture tank 2. When the temperature of the culture medium in a corresponding area is too low and has not reached the normal temperature, the grid-type heating plate 5043 inside the heating lifting plate 504 can circulate heat to cool the gas before it is blown out. Secondary heating involves the gas being heated twice before being ejected from the first nozzle 507 and the second nozzle 509. This allows for compensatory heating of the culture medium in the corresponding areas, ensuring that the temperature of the culture medium at different locations is the same and further improving heating uniformity. When air is blown into the microbial culture tank 2, the air pressure can push the piston assembly 804 on the exhaust assembly 8 upwards. After the piston assembly 804 is pushed upwards, the exhaust gas can be discharged from the exhaust port 802 on one side of the exhaust section 801. When blowing air into the microbial culture tank 2 stops, the piston assembly 804 automatically moves downwards to reset under the action of the spring 805, which can automatically seal the microbial culture tank 2 and prevent pathogens from entering the microbial culture tank 2.

[0054] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A far-infrared heat-insulating incubation container, comprising a movable base (1) and a microbial incubation tank (2) fixedly mounted on top of the movable base (1) by a bracket, characterized in that: An air inlet assembly (3) is connected to the outer side of the bottom of the microbial culture tank (2). A support column (4) is fixedly provided at the bottom of the inner cavity of the microbial culture tank (2). A pneumatic mixing mechanism (5) is fixedly provided at the top of the support column (4). Temperature sensors (6) are provided on the outer side of the pneumatic mixing mechanism (5) and the outer side of the support column (4). An oxygen concentration sensor (7) and an exhaust assembly (8) are fixedly provided at the top of the inner cavity of the microbial culture tank (2). The pneumatic mixing mechanism (5) adopts a modular design and is composed of multiple pneumatic mixing units. The pneumatic mixing unit includes a hollow upright (501) and a gas distribution cylinder (502) set at the top of the hollow upright (501). The bottom of the gas distribution cylinder (502) is symmetrically fixed with guide columns (503). The guide columns (503) and the hollow upright (501) are fitted with a heated lifting plate (504). The top of the heated lifting plate (504) and the gas distribution cylinder (502) are connected by a spring-type air supply pipe (505). The heated lifting plate (504) is rotatably provided with a grid-type mixing plate (506) on the outside. The bottom and the outside of the grid-type mixing plate (506) are respectively provided with a first nozzle (507) and a mixing blade (508). The outside of the mixing blade (508) is provided with a second nozzle (509).

2. The far-infrared heat-preserving incubation container according to claim 1, characterized in that: The microbial culture tank (2) includes a tank body (201) and a feed inlet (202) with a sealing cover plate at the top of the tank body (201). The bottom of the tank body (201) is provided with a discharge port (203) with a discharge valve. A heating chamber (204) is provided on the tank body (201), and a heating component (205) is provided in the heating chamber (204).

3. The far-infrared heat-preserving incubation container according to claim 2, characterized in that: The inner wall of the microbial culture tank (2) is provided with a far-infrared heat-insulating coating.

4. The far-infrared heat-preserving incubation container according to claim 2, characterized in that: The air intake assembly (3) includes an annular pipe (301) and an air intake pipe (302) fixed to the outer side of the bottom end of the tank (201) by a branch pipe. An air inlet (303) is provided on the outer side of the annular pipe (301), and a flow control valve (304) is provided on the air inlet (303).

5. The far-infrared heat-preserving incubation container according to claim 4, characterized in that: The air inlet pipe (302) is connected between the tank body (201) and the topmost pneumatic mixing unit.

6. The far-infrared heat-preserving incubation container according to claim 1, characterized in that: The exhaust assembly (8) includes an exhaust section (801) fixedly installed at the top of the microbial culture tank (2) and an exhaust port (802) opened on one side of the exhaust section (801). A pin (803) is inserted through the top of the exhaust section (801), and a piston assembly (804) and a spring (805) are respectively provided at the bottom end and the outer side of the bottom end of the pin (803).

7. The far-infrared heat-preserving incubation container according to claim 1, characterized in that: The heated lifting plate (504) includes a disc body (5041) that is slidably sleeved on the outside of the hollow upright (501) and the guide column (503). The disc body (5041) has an air collection chamber (5042) inside. The air collection chamber (5042) has a grid-type heating plate (5043) fixedly installed inside. The disc body (5041) has a gas delivery port (5044) on the outside.

8. The far-infrared heat-preserving incubation container according to claim 1, characterized in that: Both the first nozzle (507) and the second nozzle (509) are nozzles with a check valve to prevent backflow.

9. The far-infrared heat-preserving incubation container according to claim 7, characterized in that: The spring-type gas pipe (505) includes a spring-type pipe body (5051), on which a gas delivery channel (5052) is provided, and the upper and lower ends of the spring-type pipe body (5051) are respectively connected to the gas distribution cylinder (502) and the disc body (5041).

10. A far-infrared heat-preserving incubation container according to claim 9, characterized in that: The grid-type mixing plate (506) includes an annular gas collecting component (5061) rotatably sealed to the outside of the disc body (5041), a first gas outlet pipe (5062), and a second gas outlet pipe (5063). A gas distribution branch pipe (5064) is connected through the annular gas collecting component (5061), the first gas outlet pipe (5062), and the second gas outlet pipe (5063).

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