Air distributor and fermentation tank

Abstract

The utility model discloses an air distributor and a fermentation tank, relates to the technical field of fermentation, and mainly aims to enable the distributor to uniformly spray air into materials in the tank. According to the main technical scheme, the air distributor comprises a cylinder body and a spherical cover plate, a plurality of discharge ports are uniformly distributed in the side wall of the lower port of the barrel; the edge of the spherical cover plate is fixedly connected to the edge of the upper port of the cylinder body, and a plurality of air injection hole channels are uniformly distributed on the circumference of the spherical cover plate.

Description

Technical Field

[0001] This utility model relates to the field of fermentation technology, and in particular to an air distributor and a fermentation tank. Background Technology

[0002] In the fields of biomedicine and microbial fertilizers, fermenters are commonly used equipment. Their function is to provide optimal conditions for microbial growth and reproduction. Within the fermenter, these organisms perform their catalytic and metabolic functions, producing metabolites that are difficult to obtain through conventional chemical reactions. During microbial growth and metabolism, a large amount of air needs to be supplied to the fermenter. Through the agitator and mixing action within the fermenter, this air is dispersed from large bubbles into smaller bubbles and dissolved in the fermentation broth for the microorganisms to use.

[0003] In aerobic fermentation production, such as for amino acids, antibiotics, and vitamins, aerobic fermentation cannot be separated from air from beginning to end. Therefore, how to distribute air evenly so that the raw material liquid bacteria can fully absorb oxygen from the air is a key factor affecting stable and high yields.

[0004] In fermentation tanks, air distributors are often required to provide air for fermentation. Existing air distributors are generally ring distributors that are connected to the bottom wall of the fermentation tank. During use, ring distributors are prone to material accumulation, uneven air distribution, and difficult cleaning, which affects the continuous operation of the equipment. Utility Model Content

[0005] In view of this, the present invention provides an air distributor and a fermentation tank, the main purpose of which is to enable the distributor to evenly spray air into the material inside the tank.

[0006] To achieve the above objectives, this utility model mainly provides the following technical solutions:

[0007] On the one hand, this utility model provides an air distributor, which includes: a cylindrical body and a spherical cover plate;

[0008] The lower end sidewall of the cylinder is evenly distributed with multiple discharge ports;

[0009] The edge of the spherical cover plate is fixedly connected to the upper port edge of the cylinder, and multiple air jet channels are evenly distributed around the circumference of the spherical cover plate.

[0010] The purpose of this utility model and the technical problems to be solved can be further achieved by the following technical measures.

[0011] Optionally, the jet channel is spiral-shaped, and the center line of the spiral of the jet channel coincides with the central axis of the cylinder.

[0012] Optionally, the discharge port is in the shape of a rectangular door frame.

[0013] Optionally, the discharge port is in the shape of an arched doorway.

[0014] On the other hand, this utility model provides a fermentation tank, which includes: a tank body and the aforementioned air distributor;

[0015] The lower end of the tank is connected to a discharge pipe, and the wall of the discharge pipe is connected to a gas transmission pipe.

[0016] The lower end of the cylinder corresponds to the discharge pipe.

[0017] Optionally, it also includes an air guide pipe, which is disposed inside the discharge pipe. The upper end of the air guide pipe extends to the upper port of the cylinder, and the air supply pipe penetrates the wall of the discharge pipe and is connected to the lower end of the air guide pipe.

[0018] Optionally, the center lines of the air guide pipe, the discharge pipe, and the cylinder are aligned.

[0019] Optionally, the upper sidewall of the air duct has multiple through holes evenly distributed.

[0020] Optionally, a stirring mechanism may also be included, which is disposed in the upper space of the tank.

[0021] By employing the above technical solution, this utility model has at least the following advantages:

[0022] When installing this air distributor, the lower port edge of the cylinder is welded to the bottom wall of the fermenter, and the lower port of the cylinder corresponds to the discharge pipe;

[0023] Before feeding material from the upper feeding port of the tank, close the discharge pipe valve. After feeding, seal the feeding port and open the air supply pipe valve to deliver air into the cylinder through the air supply pipe and the discharge pipe. The air pressure inside the cylinder is greater than the air pressure outside the cylinder. The high-pressure gas forces the liquid material inside the cylinder out through multiple discharge ports. The rising air is then sprayed upwards into the material through multiple jet channels. In this way, the gas diffuses more evenly in the material because the multiple jet channels are evenly distributed on the spherical cover plate, and the pressure difference at both ends of different jet channels is basically the same, so that the air is sprayed into the material simultaneously through multiple jet channels. Attached Figure Description

[0024] Figure 1 A partial cross-sectional view of an air distributor provided in an embodiment of this utility model;

[0025] Figure 2 A partial cross-sectional view of another air distributor provided in an embodiment of this utility model;

[0026] Figure 3A schematic diagram of the structure of a fermenter provided in an embodiment of this utility model;

[0027] Figure 4 This is a schematic diagram of another fermenter provided in an embodiment of the present invention.

[0028] The reference numerals in the accompanying drawings include: cylinder 1, spherical cover plate 2, discharge port 3, jet duct 4, tank 5, discharge pipe 6, air supply pipe 7, discharge pipe valve 8, air supply pipe valve 9, pressure gauge 10, feeding port 11, air guide pipe 12, through hole 13, drive motor 14, stirring shaft 15, stirring blade 16, support 17. Detailed Implementation

[0029] To further illustrate the technical means and effects adopted by this utility model to achieve its intended purpose, the specific implementation methods, structures, features, and effects according to this utility model application are described in detail below with reference to the accompanying drawings and preferred embodiments. In the following description, different "embodiments" or "embodiments" do not necessarily refer to the same embodiment. Furthermore, specific features, structures, or characteristics in one or more embodiments can be combined in any suitable form.

[0030] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0031] like Figure 1 or Figure 2 As shown, one embodiment of the present invention provides an air distributor, which includes: a cylindrical body 1 and a spherical cover plate 2;

[0032] The lower end sidewall of the cylinder 1 is evenly distributed with multiple discharge ports 3;

[0033] The edge of the spherical cover plate 2 is fixedly connected to the upper port edge of the cylinder 1, and the spherical cover plate 2 has multiple air jet channels 4 evenly distributed around its circumference.

[0034] The working process of the air distributor is as follows:

[0035] When installing this air distributor, the lower port edge of the cylinder 1 is welded to the bottom wall of the tank body 5 of the fermenter, and the lower port of the cylinder 1 corresponds to the discharge pipe 6.

[0036] Before feeding material into the upper feed port 11 of the tank 5, close the discharge pipe valve 8. After feeding, seal the feed port 11 and open the gas supply pipe valve 9 to deliver air into the cylinder 1 through the gas supply pipe 7 and the discharge pipe 6. The air pressure inside the cylinder 1 is greater than the air pressure outside the cylinder 1. The high-pressure gas pushes the liquid material inside the cylinder 1 out through multiple discharge ports 3. The rising air is then sprayed upward into the material through multiple jet channels 4. In this way, the gas diffuses more evenly in the material because multiple jet channels 4 are evenly distributed on the spherical cover plate 2. The pressure difference between the two ends of different jet channels 4 is basically the same, so that the air is sprayed into the material simultaneously through multiple jet channels 4, and the gas diffuses evenly into the material, thereby improving the efficiency of microbial fermentation.

[0037] When the internal pressure of tank 5 reaches 0.05-0.07MPa, close the gas supply valve 9. After the material in tank 5 has finished fermenting, open the discharge pipe valve 8. The material in tank 5 enters the discharge pipe 6 through multiple discharge ports 3 on the side wall of the lower end of cylinder 1 and is discharged.

[0038] like Figure 1 or Figure 2 As shown, in a specific embodiment, the jet channel 4 is spiral-shaped, and the center line of the spiral of the jet channel 4 coincides with the central axis of the cylinder 1.

[0039] In this embodiment, specifically, high-pressure air inside the cylinder 1 enters the jet channel 4, and the spiral jet channel 4 constrains the air to be ejected into the material in a spiral trajectory. The spiral directions of multiple jet channels 4 are the same, and the spiral trajectories of multiple air streams are also in the same direction. In this way, the spiral airflow impacts the liquid material inside the tank 5, causing the liquid material to rotate and mix evenly.

[0040] like Figure 2 As shown in the specific embodiment, the discharge port 3 is in the shape of a rectangular door frame.

[0041] In this embodiment, the rectangular gate-shaped discharge port 3 has a large flow area, which facilitates a faster discharge speed.

[0042] like Figure 1 As shown in the specific embodiment, the discharge port 3 is in the shape of an arched door frame.

[0043] In this embodiment, the edges of the arched doorway 3 are relatively smooth, which avoids the material from getting caught on the edges of the discharge port 3 and allows the material to be discharged as cleanly as possible.

[0044] like Figure 3 As shown, another embodiment of the present invention provides a fermentation tank, which includes: a tank body 5 and the aforementioned air distributor;

[0045] The lower end of the tank body 5 is connected to the discharge pipe 6, and the pipe wall of the discharge pipe 6 is connected to the gas transmission pipe 7.

[0046] The lower port of the cylinder 1 corresponds to the discharge pipe 6.

[0047] In this embodiment, specifically, the lower end edge of the cylinder 1 is welded to the bottom wall of the tank 5, so that the lower end of the cylinder 1 is stably aligned with the discharge pipe 6. When the material in the tank 5 has finished fermenting, the discharge pipe valve 8 is opened, and the material in the tank 5 enters the discharge pipe 6 through multiple discharge ports 3 on the side wall of the cylinder 1, so as to achieve the purpose of material discharge.

[0048] Specifically, valves are installed on the gas supply pipe 7 and the discharge pipe 6 respectively;

[0049] Specifically, the top wall of tank 5 is connected to pressure gauge 10 to monitor the internal pressure of tank 5;

[0050] Specifically, the top wall of the tank body 5 is provided with a feeding port 11. After feeding is completed, the feeding port 11 is sealed with a manhole cover.

[0051] like Figure 4 As shown, in a specific embodiment, it also includes an air guide pipe 12, which is disposed inside the discharge pipe 6. The upper end of the air guide pipe 12 extends to the upper port of the cylinder 1. The air supply pipe 7 penetrates the pipe wall of the discharge pipe 6 and is connected to the lower end of the air guide pipe 12.

[0052] In this embodiment, specifically, after the valve of the gas supply pipe 7 is opened, high-pressure air is delivered to the upper port of the cylinder 1 through the gas guide pipe 12. At the upper port of the cylinder 1, the high-pressure air initially diffuses and resists the material inside the cylinder 1 from entering the gas guide pipe 12. At the same time, the high-pressure air diffuses synchronously from the upper end of the gas guide pipe 12 to the inner surface of the spherical cover plate 2, so that the air pressure at the multiple jet channels 4 is kept consistent, and the air is synchronously discharged to the material in the tank 5 through the multiple jet channels 4.

[0053] Specifically, after fermentation is complete and the material in tank 5 is discharged, the gas supply valve 9 is briefly opened to blow away any remaining material in the gas supply pipe 12 with compressed air, in order to prevent the material from crystallizing and clogging the gas supply pipe 12.

[0054] like Figure 4 As shown, in a specific embodiment, the center lines of the air guide pipe 12, the discharge pipe 6, and the cylinder 1 coincide.

[0055] In this embodiment, the center lines of the air guide pipe 12, the discharge pipe 6 and the cylinder 1 coincide, and the distance between the upper end of the air guide pipe 12 and the different jet channels 4 around the spherical cover plate 2 is consistent. The high-pressure air arrives at the multiple jet channels 4 at the same time, which facilitates the synchronous ejection of high-pressure air through the multiple jet channels 4.

[0056] like Figure 1 or Figure 2 As shown in the specific embodiment, the upper sidewall of the air guide tube 12 is provided with a plurality of through holes 13.

[0057] In this embodiment, specifically, the upper end of the air guide pipe 12 is closed, and multiple through holes 13 are evenly distributed around the upper side wall of the air guide pipe 12. High-pressure air is first ejected into the cylinder 1 through the multiple through holes 13. The high-pressure air undergoes good initial circumferential diffusion in the cylinder 1. The initially diffused air then passes through multiple jet channels 4 to further improve the uniformity of high-pressure air diffusion in the tank 5.

[0058] like Figure 3 or Figure 4 As shown, in a specific embodiment, a stirring mechanism is also included, which is disposed in the upper space of the tank 5.

[0059] In this embodiment, specifically, the stirring mechanism includes a drive motor 14, a stirring shaft 15, and multiple stirring blades 16. The drive motor 14 is fixedly installed on the top wall of the tank 5, and the output shaft of the drive motor 14 is coaxially connected to the stirring shaft 15. The multiple stirring blades 16 are respectively fixedly connected to the shaft side of the stirring shaft 15.

[0060] The rotation direction of the stirring blade 16 of the stirring mechanism is the same as the spiral flow direction of the spiral airflow inside the tank 5. The two complement each other and achieve synchronous stirring of the material inside the tank 5, thereby improving the mixing efficiency of the material inside the tank 5.

[0061] Specifically, the stirring mechanism also includes a support 17, with both ends of the support 17 fixedly connected to the inner wall of the tank 5, and the lower end of the stirring shaft 15 rotatably connected to the middle of the support 17.

[0062] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. An air distributor, characterized in that, The air distributor comprises: a cylinder, the lower end of which is provided with a plurality of discharge ports; a spherical cover plate, the edge of which is fixedly connected to the upper end of the cylinder, and the circumferential edge of which is provided with a plurality of air injection channels.

2. The air distributor according to claim 1, wherein the air injection channels are in the shape of a spiral, and the center line of the spiral coincides with the central axis of the cylinder.

3. The air distributor according to claim 1, wherein the discharge ports are in the shape of a rectangular door frame.

4. The air distributor according to claim 1, wherein the discharge ports are in the shape of an arched door frame.

5. A fermenter characterised in that, The air distributor comprises: a cylinder, the lower end of which is provided with a plurality of discharge ports; a spherical cover plate, the edge of which is fixedly connected to the upper end of the cylinder, and the circumferential edge of which is provided with a plurality of air injection channels.

2. The air distributor according to claim 1, wherein the air injection channels are in the shape of a spiral, and the center line of the spiral coincides with the central axis of the cylinder.

3. The air distributor according to claim 1, wherein the discharge ports are in the shape of a rectangular door frame.

4. The air distributor according to claim 1, wherein the discharge ports are in the shape of an arched door frame. The air distributor comprises: a cylinder, the lower end of which is provided with a plurality of discharge ports; a spherical cover plate, the edge of which is fixedly connected to the upper end of the cylinder, and the circumferential edge of which is provided with a plurality of air injection channels.

2. The air distributor according to claim 1, wherein the air injection channels are in the shape of a spiral, and the center line of the spiral coincides with the central axis of the cylinder.

3. The air distributor according to claim 1, wherein the discharge ports are in the shape of a rectangular door frame.

4. The air distributor according to claim 1, wherein the discharge ports are in the shape of an arched door frame. The air distributor comprises: a cylinder, the lower end of which is provided with a plurality of discharge ports; a spherical cover plate, the edge of which is fixedly connected to the upper end of the cylinder, and the circumferential edge of which is provided with a plurality of air injection channels.

2. The air distributor according to claim 1, wherein the air injection channels are in the shape of a spiral, and the center line of the spiral coincides with the central axis of the cylinder.

3. The air distributor according to claim 1, wherein the discharge ports are in the shape of a rectangular door frame.

4. The air distributor according to claim 1, wherein the discharge ports are in the shape of an arched door frame. The air distributor comprises: a cylinder, the lower end of which is provided with a plurality of discharge ports; a spherical cover plate, the edge of which is fixedly connected to the upper end of the cylinder, and the circumferential edge of which is provided with a plurality of air injection channels.

2. The air distributor according to claim 1, wherein the air injection channels are in the shape of a spiral, and the center line of the spiral coincides with the central axis of the cylinder.

3. The air distributor according to claim 1, wherein the discharge ports are in the shape of a rectangular door frame.

4. The air distributor according to claim 1, wherein the discharge ports are in the shape of an arched door frame. The air distributor comprises: a cylinder, the lower end of which is provided with a plurality of discharge ports; a spherical cover plate, the edge of which is fixedly connected to the upper end of the cylinder, and the circumferential edge of which is provided with a plurality of air injection channels.

2. The air distributor according to claim 1, wherein the air injection channels are in the shape of a spiral, and the center line of the spiral coincides with the central axis of the cylinder.

3. The air distributor according to claim 1, wherein the discharge ports are in the shape of a rectangular door frame.

4. The air distributor according to claim 1, wherein the discharge ports are in the shape of an arched door frame. The air distributor comprises: a cylinder, the lower end of which is provided with a plurality of discharge ports; a spherical cover plate, the edge of

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