CN210458183U - Inoculation structure for strain inoculation, inoculation device and inoculation fermentation system thereof - Google Patents

Abstract

The utility model discloses an inoculation structure and inoculation device and inoculation fermentation system for bacterial inoculation belongs to the technical field of bacterial inoculation. The utility model relates to an inoculation structure for inoculating strains, which comprises a strain adding cylinder, a first pipeline, a second pipeline and a third pipeline; wherein, two ends of the pipeline II are respectively communicated with the pipeline I and the strain adding cylinder; two ends of the pipeline III are respectively communicated with the strain adding cylinder and the pipeline I; the first pipeline is provided with a first valve which is positioned on the first pipeline between the second pipeline and the third pipeline 23; the second pipeline is provided with a second valve; and a third valve is assembled on the third pipeline. When the inoculation structure of the utility model is adopted for inoculation operation, inoculation is not needed through a manhole of the fermentation cylinder; can avoid inoculating the drawback that produces through fermentation vat manhole, be online inoculation process, can improve work efficiency.

Description

Inoculation structure for strain inoculation, inoculation device and inoculation fermentation system thereof

Technical Field

The utility model relates to an inoculation structure and inoculation device and inoculation fermentation system for bacterial inoculation belongs to the technical field of bacterial inoculation.

Background

In the food fermentation industry, such as the production of dairy yogurt, there is a process step of strain inoculation during the production process. In a yoghurt preparation plant, the traditional process of strain inoculation during yoghurt fermentation is generally as follows: after the strain is activated, opening a manhole of the fermentation cylinder, adding the strain from the manhole of the fermentation cylinder, and storing milk in the fermentation cylinder; then the manhole is closed, the mixture is stirred evenly and then is subjected to static fermentation, and finally the process step of inoculating the strains is completed.

In the actual inoculation process, as the number of the yoghourt fermentation cylinders is large, the manhole opening of the fermentation cylinder is large, and the space around the manhole of the fermentation cylinder is open, the fermentation cylinder is easily polluted by microorganisms such as mould, yeast and bacteriophage in the air, so that the fermentation quality of the product is unstable.

The solution in the current production: in order to prevent pollution, the space around the manhole of the fermentation cylinder is sprayed with alcohol for disinfection during inoculation. However, the above methods have some disadvantages: the fermentation cylinder manhole space is too big, the space disinfection effect is relatively poor, the space disinfection quality is completely manually controlled, the fluctuation is easy to occur, and the aseptic operation in the inoculation process is difficult to realize.

Therefore, it is highly desirable to design an inoculation structure for inoculation of strains without inoculation through the manhole of the fermenter.

Disclosure of Invention

The invention of the utility model aims to: to the problem that above-mentioned exists, provide an inoculation structure and inoculation device and inoculation fermentation system for the bacterial inoculation, the utility model discloses need not to come the inoculation through the fermentation vat manhole.

The utility model adopts the technical scheme as follows:

an inoculation structure for strain inoculation comprises a strain adding cylinder, a first pipeline, a second pipeline and a third pipeline; wherein, two ends of the pipeline II are respectively communicated with the pipeline I and the strain adding cylinder; two ends of the pipeline III are respectively communicated with the strain adding cylinder and the pipeline I; the first pipeline is provided with a first valve which is positioned on the first pipeline between the second pipeline and the third pipeline 23; the second pipeline is provided with a second valve; and a third valve is assembled on the third pipeline.

Adopt the utility model discloses an when inoculation structure carries out the inoculation operation, realize the action process of inoculation operation through opening and close of controlling each valve. The specific action process comprises two steps: step one, opening a valve I in the action process of adding strains; closing the second valve and the third valve; at this time, the fluid (such as milk) inputted from the upstream section of the first pipeline flows to the downstream section of the first pipeline from the upstream section of the first pipeline, and then is transferred to the fermentation cylinder communicated with the downstream section of the first pipeline, and then an appropriate amount of the seed culture is added to the seed culture addition cylinder. Step two, closing the first valve in the action process of strain inoculation; opening a second valve and a third valve; at the moment, fluid (such as milk) input from the upstream section of the pipeline I flows through the pipeline II, the strain adding cylinder and the pipeline III from the upstream section of the pipeline I and is conveyed into the fermentation cylinder from the downstream section of the pipeline I; in the process that the fluid flows through the strain adding cylinder, the strains in the strain adding cylinder are flushed away and finally flushed into the fermentation cylinder. It can be seen that when the inoculation structure of the utility model is adopted for inoculation operation, the inoculation is not needed through the manhole of the fermentation cylinder; can avoid inoculating the drawback that produces through fermentation vat manhole, be online inoculation process, can improve work efficiency.

Optionally, the device also comprises a pipeline IV; one end of the pipeline four is communicated with the pipeline three, the communication position is positioned between the strain adding cylinder and the valve three, and the pipeline four is provided with the valve four. When strains are added into the strain adding cylinder, if the design is not adopted, fluid is often stored in the strain adding cylinder, and the strains are not convenient to add. When the design is adopted, before the action process of adding the strains, the liquid discharge action process of the strain adding cylinder is firstly carried out: opening a first valve and a fourth valve; closing the second valve and the third valve; at this time, the fluid stored in the seed addition cylinder is discharged from the line four, so that the seed addition cylinder leaves enough space for adding the seed.

Preferably, all valves are electrically actuated valves. In the technical scheme without the pipeline four and the valve four, the valve one, the valve two and the valve three are all electric valves. In the technical scheme comprising a pipeline four and a valve four, the valve one, the valve two, the valve three and the pipeline four are all electric valves.

Furthermore, the device also comprises a controller which is respectively electrically connected with all the valves and used for controlling the opening and closing of each valve. In the technical scheme without the pipeline four and the valve four, the controller is respectively electrically connected with the valve one, the valve two and the valve three. In the technical scheme comprising a pipeline four and a valve four, the controller is respectively electrically connected with the valve one, the valve two, the valve three and the pipeline four.

Optionally, the strain adding cylinder comprises a strain adding cylinder body and a strain adding cylinder cover, and the strain adding cylinder cover can be opened to cover the strain adding cylinder body. When adding strains into the strain adding cylinder, uncovering a strain adding cylinder cover, and adding the strains into the strain adding cylinder body; after the strains are added, the strain adding cylinder body is covered by the strain adding cylinder cover.

Preferably, the second pipeline is positioned on the upstream side of the third pipeline; the second pipeline is communicated with the upper part of the strain adding cylinder, and the third pipeline is communicated with the lower part of the strain adding cylinder. The fact that the second pipeline is located on the upstream side of the third pipeline means that: the pipeline two is communicated with the pipeline one and is positioned on the upstream side of the communication position of the pipeline three and the pipeline one.

The utility model provides an inoculation device for bacterial inoculation, includes the foretell inoculation structure of a plurality of, still includes inoculation hood, the last fan that is equipped with the laminar flow hood and assembles on the laminar flow hood of inoculation hood, the fan makes the air get into in the inoculation hood after the laminar flow hood filters to make and keep the malleation in the inoculation hood, the bacterial of inoculation structure adds a section of thick bamboo and assembles in the inoculation hood, and the inoculation hood is equipped with the chamber door that can open/close, so that add a section of thick bamboo to the bacterial and add the bacterial.

When the inoculation device of the utility model is adopted, under the action of the fan, outside air enters the inoculation box after being filtered by the laminar flow hood, and the laminar flow hood can filter the air entering the inoculation box so as to filter impurities, microorganisms and the like in the air; moreover, under the action of the fan, the inside of the inoculation box is kept at positive pressure, so that unfiltered air can be prevented from entering the inoculation box; so that a positive-pressure basically sterile clean environment is kept in the inoculation box; and the strain adding cylinder is just in the clean environment with basically aseptic positive pressure, and when strains are added into the strain adding cylinder, the risk of microbial pollution caused in the inoculation process can be greatly reduced.

Optionally, a germicidal lamp is assembled inside the inoculation box. Can further kill the microorganisms entering the inoculation box. Preferably, the germicidal lamp is an ultraviolet lamp.

Optionally, a lighting lamp is assembled in the inoculation box. Provide light, be convenient for add the bacterial to the bacterial interpolation section of thick bamboo.

An inoculation fermentation system comprises the inoculation structure or the inoculation device and further comprises a plurality of fermentation cylinders, each fermentation cylinder is communicated with the downstream section of the first pipeline through a fifth pipeline, a fifth valve is assembled on the fifth pipeline, and the upstream section of the first pipeline is used for inputting fermentation fluid to be inoculated. When the corresponding valve five is opened, fluid and strains mixed in the fluid can be injected into the corresponding fermentation cylinder, and when the fluid in the fermentation cylinder is injected to a proper position, the valve five is closed; the fermentation cylinder is provided with a stirring mechanism, and the fluid and the strains are stirred uniformly and then are subjected to static fermentation.

To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:

the utility model discloses an inoculation structure for strain inoculation, an inoculation device and an inoculation fermentation system thereof, when the inoculation structure of the utility model is adopted for inoculation operation, inoculation is not required to be carried out through a manhole of a fermentation cylinder; can avoid inoculating the drawback that produces through fermentation vat manhole, be online inoculation process, can improve work efficiency. The design of the inoculation device based on the inoculation structure enables the strain adding cylinder to be in a positive pressure basically sterile clean environment, and can greatly reduce microbial pollution risks brought in the inoculation process when strains are added into the strain adding cylinder. Based on the design of the fermentation system of the inoculation structure or the inoculation device, centralized fixed-point and online addition of yogurt product production and inoculation in a sterile environment can be realized, the working efficiency is high, and the risk of microbial contamination in the product inoculation process is low.

Drawings

FIG. 1 is a schematic structural view of an inoculation structure; wherein, the inoculation structure does not comprise a pipeline four and a valve four;

FIG. 2 is a schematic structural view of another seeding structure; wherein, the inoculation structure comprises a pipeline four and a valve four;

FIG. 3 is a schematic diagram of an inoculating device; wherein, the inoculation structure does not comprise a pipeline four and a valve four;

FIG. 4 is a schematic view of another inoculating device; wherein, the inoculation structure comprises a pipeline four and a valve four;

FIG. 5 is a schematic flow path of the inoculation apparatus of FIG. 4 during the addition of a seed;

FIG. 6 is a schematic flow path of the inoculation process of a seed using the inoculation apparatus of FIG. 4;

FIG. 7 is a schematic fluid path diagram illustrating the draining operation of the seed addition cartridge using the inoculating device of FIG. 4;

FIG. 8 is a schematic diagram of an inoculating fermentation system employing the inoculating device of FIG. 4;

FIG. 9 is a schematic diagram of an inoculated fermentation system employing the inoculation configuration of FIG. 1.

The labels in the figure are: 1-strain adding cylinder, 11-strain adding cylinder body, 12-strain adding cylinder cover, 21-pipeline I, 22-pipeline II, 23-pipeline III, 24-pipeline IV, 25-pipeline V, 3-controller, 31-valve I, 32-valve II, 33-valve III, 34-valve IV, 35-valve V, 4-inoculation box, 41-box door, 42-bactericidal lamp, 43-lighting lamp, 5-laminar flow hood, 6-fan and 7-fermentation cylinder.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings.

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Example one

As shown in fig. 1 to 9, an inoculation structure for inoculating a strain according to the first embodiment includes a strain adding cylinder 1, a first pipeline 21, a second pipeline 22, and a third pipeline 23; wherein, two ends of the second pipeline 22 are respectively communicated with the first pipeline 21 and the strain adding cylinder 1; two ends of the pipeline III 23 are respectively communicated with the strain adding cylinder 1 and the pipeline I21; the first pipeline 21 is provided with a first valve 31, and the first valve 31 is positioned on the first pipeline 21 between the second pipeline 22 and the third pipeline 23; the second pipeline 22 is provided with a second valve 32; line three 23 is equipped with valve three 33.

Adopt the utility model discloses an when inoculation structure carries out the inoculation operation, realize the action process of inoculation operation through opening and close of controlling each valve. The specific action process comprises two steps: step one, in the action process of adding strains, opening a first valve 31; closing the second valve 32 and the third valve 33; at this time, the fluid (e.g., milk) supplied from the upstream section of the line one 21 flows from the upstream section of the line one 21 to the downstream section of the line one 21, and is then transferred to the fermenter communicating with the downstream section of the line one 21, and then an appropriate amount of seed culture is added to the seed culture addition cylinder 1. Step two, closing a first valve 31 in the action process of strain inoculation; opening a second valve 32 and a third valve 33; at this time, the fluid (such as milk) inputted from the upstream section of the first pipeline 21 flows from the upstream section of the first pipeline 21, passes through the second pipeline 22, the strain adding cylinder 1, the third pipeline 23, and is conveyed from the downstream section of the first pipeline 21 to the fermentation cylinder; in the process that fluid flows through the strain adding cylinder 1, strains in the strain adding cylinder 1 are washed away and finally washed into the fermentation cylinder. It can be seen that when the inoculation structure of the utility model is adopted for inoculation operation, the inoculation is not needed through the manhole of the fermentation cylinder; can avoid the drawback that the seed is received through the fermentation cylinder manhole and produces.

Alternatively, in another embodiment, as shown in fig. 2-8, a line four 24 is also included; one end of the pipeline four 24 is communicated with the pipeline three 23, and the communication is positioned between the strain adding cylinder 1 and the valve three 33, and the pipeline four 24 is provided with a valve four 34. When adding strains into the strain adding cylinder 1, if the design is not adopted, fluid is often stored in the strain adding cylinder 1, which is inconvenient for adding strains. When the design is adopted, before the action process of adding the strains, the liquid discharging action process of the strain adding cylinder 1 is carried out: opening a first valve 31 and a fourth valve 34; closing the second valve 32 and the third valve 33; at this time, the fluid stored in the seed addition cartridge 1 is discharged from the line four 24, so that the seed addition cartridge 1 leaves enough space for adding the seed.

Preferably, in one embodiment, all of the valves are electrically actuated valves. In the technical scheme without the pipeline four 24 and the valve four 34, the valve one 31, the valve two 32 and the valve three 33 are all electric valves. In the technical scheme comprising a pipeline four 24 and a valve four 34, the valve one 31, the valve two 32, the valve three 33 and the pipeline four 24 are all electric valves.

Further, in another embodiment, the system further comprises a controller 3, and the controller 3 is electrically connected to all the valves respectively and is used for controlling the opening and closing of each valve. In the technical scheme without the pipeline four 24 and the valve four 34, the controller 3 is electrically connected with the valve one 31, the valve two 32 and the valve three 33 respectively. In the technical scheme comprising the pipeline four 24 and the valve four 34, the controller 3 is respectively electrically connected with the valve one 31, the valve two 32, the valve three 33 and the pipeline four 24.

Alternatively, in another embodiment, as shown in fig. 1 and fig. 2, the seed adding cylinder 1 includes a seed adding cylinder body 11 and a seed adding cylinder cover 12, and the seed adding cylinder cover 12 can be opened to cover the seed adding cylinder body 11. When strains are added into the strain adding cylinder 1, the strain adding cylinder cover 12 is uncovered, and the strains are added into the strain adding cylinder body 11; after the addition of the strains is finished, the strain adding cylinder body 11 is covered by the strain adding cylinder cover 12.

Preferably, in another embodiment, as shown in fig. 1 to 7, the second line 22 is located on the upstream side of the third line 23; the second pipeline 22 is communicated with the upper part of the strain adding cylinder 1, and the third pipeline 23 is communicated with the lower part of the strain adding cylinder 1. The fact that line two 22 is located on the upstream side of line three 23 means that: the communication between the second pipeline 22 and the first pipeline 21 is located at the upstream side of the communication between the third pipeline 23 and the first pipeline 21.

Example two

As shown in fig. 3 to 8, an inoculation device for inoculating strains according to the second embodiment includes a plurality of inoculation structures according to the first embodiment, and further includes an inoculation box 4, wherein the inoculation box 4 is provided with a laminar flow hood 5 and a fan 6 mounted on the laminar flow hood, the fan 6 allows air filtered by the laminar flow hood 5 to enter the inoculation box 4, and keeps the inside of the inoculation box 4 at positive pressure, a strain addition cylinder 1 of the inoculation structure is mounted in the inoculation box 4, and the inoculation box 4 is provided with a box door 41 capable of being opened/closed, so as to add strains to the strain addition cylinder 1.

When the inoculation device of the utility model is adopted, under the action of the fan 6, the outside air enters the inoculation box 4 after being filtered by the laminar flow hood 5, and the laminar flow hood 5 can filter the air entering the inoculation box 4 so as to filter impurities, microorganisms and the like in the air; moreover, under the action of the fan 6, the inside of the inoculation hood 4 is kept at positive pressure, so that unfiltered air can be prevented from entering the inoculation hood 4; so that the inside of the inoculation box 4 is kept in a positive pressure basically sterile clean environment; the strain adding cylinder 1 is in the clean environment with basically aseptic positive pressure, and when strains are added into the strain adding cylinder 1, the risk of microbial pollution caused in the inoculation process can be greatly reduced.

Keep the malleation in the inoculation hood 4, the fan 6 is continuous to send into the air to inoculation hood 4, so inoculation hood 4 must have exhaust passage, because the design of chamber door 41 to and inoculation structure exists the part that must pass inoculation hood 4, consequently, inoculation hood 4 often is not totally sealed, just need not to design the exhaust hole of special design. Of course, it is also possible to provide the inoculation hood 4 with an exhaust opening as an exhaust duct, if necessary.

The strain adding cylinder 1 is assembled in the inoculation box 4: the whole strain adding cylinder 1 is positioned in the inoculation box 4, and the second pipeline 22 and the third pipeline 23 penetrate through the inoculation box 4; the strain adding cylinder 1, the pipeline two 22 and the pipeline three 23 can be positioned in the inoculation box 4, and the pipeline one 21 and the pipeline four 24 penetrate through the inoculation box 4; only the part for adding strains on the upper part of the strain adding cylinder 1 is positioned in the inoculation box 4, and the strain adding cylinder 1 passes through the inoculation box 4.

The inoculating device may comprise only 1 inoculating structure, in which case 1 seed addition cartridge 1 is assembled in the inoculating box 4, and the inoculating device has 1 line one 21 and can be used for inoculating the fermenter 7 arranged along the 1 line one 21. The inoculating device may further comprise a plurality of inoculating structures, in which case a plurality of seed adding cartridges 1 are assembled in the inoculating box 4, and the inoculating device has 2 lines one 21, which can be used for simultaneously inoculating the fermenter 7 arranged along the plurality of lines one 21. For example, in one embodiment, as shown in fig. 3 to 7, the inoculation apparatus comprises 2 inoculation structures, in this case, 2 seed culture addition drums 1 are assembled in the inoculation box 4, and the inoculation apparatus has 2 pipelines one 21 and can be used for simultaneously inoculating the fermentation cylinders 7 arranged along the 2 pipelines one 21.

Alternatively, in one embodiment, as shown in FIGS. 3-8, the inoculation chamber 4 is equipped with a germicidal lamp 42. Can further kill the microorganisms entering the inoculation chamber 4. Preferably, the germicidal lamp 42 is an ultraviolet lamp.

Alternatively, in another embodiment, as shown in fig. 3 to 8, the inoculation chamber 4 is equipped with an illumination lamp 43. Provide light to facilitate the addition of the seed culture to the seed culture addition tube 1.

EXAMPLE III

As shown in fig. 9, an inoculation fermentation system of the third embodiment comprises the inoculation structure of the first embodiment, and further comprises a plurality of fermentation cylinders 7, wherein each fermentation cylinder 7 is respectively communicated with the downstream section 21b of the first pipeline through a pipeline five 25, the pipeline five 25 is provided with a valve five 35, and the upstream section 21a of the first pipeline is used for inputting fermentation fluid to be inoculated. When the corresponding valve five 35 is opened, fluid and strains mixed in the fluid can be injected into the corresponding fermentation cylinder 7, and when the fluid in the fermentation cylinder 7 is injected to a proper position, the valve five 35 is closed; the fermentation tank 7 is provided with a stirring mechanism, and the fluid and the strains are stirred uniformly and then are subjected to static fermentation. Each valve five 35 is also a solenoid valve, and each valve five 35 is also electrically connected to the controller 3.

Example four

As shown in fig. 8, an inoculation fermentation system of the fourth embodiment comprises the inoculation device of the second embodiment, and further comprises a plurality of fermentation cylinders 7, each fermentation cylinder 7 is respectively communicated with the downstream section 21b of the first pipeline through a pipeline five 25, the pipeline five 25 is provided with a valve five 35, and the upstream section 21a of the first pipeline is used for inputting fermentation fluid to be inoculated. When the corresponding valve five 35 is opened, fluid and strains mixed in the fluid can be injected into the corresponding fermentation cylinder 7, and when the fluid in the fermentation cylinder 7 is injected to a proper position, the valve five 35 is closed; the fermentation tank 7 is provided with a stirring mechanism, and the fluid and the strains are stirred uniformly and then are subjected to static fermentation. Each valve five 35 is also a solenoid valve, and each valve five 35 is also electrically connected to the controller 3.

In one embodiment, the inoculation fermentation action process of the inoculation fermentation system is described by taking the fourth inoculation fermentation system of the embodiment as an example for making the yogurt:

firstly, opening a 1 st valve five 35 through the controller 3, and closing the other valves five 35 to start to perform inoculation fermentation operation on a 1 st fermentation tank 7;

the second step, as shown in fig. 5 and 8, is the operation process of adding strains: opening a first valve 31 through the controller 3; closing the second valve 32, the third valve 33 and the fourth valve 34; at this time, the milk inputted from the upstream section 21a of the first pipeline flows to the downstream section of the first pipeline 21b, and is conveyed into the 1 st fermentation cylinder 7, and then a proper amount of strains are added into the strain adding cylinder 1;

step three, as shown in fig. 6 and 8, the operation process of strain inoculation is as follows: closing the first valve 31 and the fourth valve 34 through the controller 3; opening a second valve 32 and a third valve 33; at this time, the milk fed from the upstream section 21a of the first line is fed from the upstream section 21a of the first line, flows through the second line 22, the seed culture addition cylinder 1, the third line 23, and is fed from the downstream section 21b of the first line into the 1 st fermenter 7; in the process that the milk flows through the strain adding cylinder 1, the strains in the strain adding cylinder 1 are washed away and finally washed into the 1 st fermentation cylinder 7.

Fourthly, when the milk in the 1 st fermentation cylinder 7 is injected to a proper position, closing the 1 st valve five 35 and simultaneously opening the 2 nd valve five 35 to start the inoculation fermentation operation to the 2 nd fermentation cylinder 7. And the milk in the 1 st fermentation cylinder 7 and the strain are stirred uniformly and then are statically fermented, so that the 1 st fermentation cylinder 7 is inoculated and fermented.

The fifth step, as shown in fig. 7 and 8, is a draining operation process of the seed addition cylinder 1: the first valve 31 and the fourth valve 34 are opened through the controller 3; closing the second valve 32 and the third valve 33; at this time, the milk fed from the upstream section 21a of the first line flows from the upstream section 21a of the first line to the downstream section 21b of the first line, and is then transferred into the 1 st fermenter 7; at the same time, milk stored in the seed addition cartridge 1 is discharged from the line four 24.

Then repeating the action processes of the second step, the third step and the fourth step (same principle); can finish the inoculation fermentation operation of the 2 nd fermentation vat 7. By the same token, the inoculation fermentation operation of each fermenter 7 can be realized.

In conclusion, by adopting the inoculation structure for inoculating the strains, the inoculation device and the inoculation fermentation system thereof, when the inoculation structure of the utility model is adopted for inoculation operation, inoculation is not required to be carried out through a manhole of a fermentation cylinder; can avoid inoculating the drawback that produces through fermentation vat manhole, be online inoculation process, can improve work efficiency. The design of the inoculation device based on the inoculation structure enables the strain adding cylinder to be in a positive pressure basically sterile clean environment, and can greatly reduce microbial pollution risks brought in the inoculation process when strains are added into the strain adding cylinder. Based on the design of the fermentation system of the inoculation structure or the inoculation device, centralized fixed-point and online addition of yogurt product production and inoculation in a sterile environment can be realized, the working efficiency is high, and the risk of microbial contamination in the product inoculation process is low.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims (10)

1. An inoculation structure for inoculation of a species, comprising: comprises a strain adding cylinder (1), a first pipeline (21), a second pipeline (22) and a third pipeline (23); wherein the content of the first and second substances,

two ends of the pipeline II (22) are respectively communicated with the pipeline I (21) and the strain adding cylinder (1);

two ends of the pipeline III (23) are respectively communicated with the strain adding cylinder (1) and the pipeline I (21);

the first pipeline (21) is provided with a first valve (31), and the first valve (31) is positioned on the first pipeline (21) between the second pipeline (22) and the third pipeline (23);

the second pipeline (22) is provided with a second valve (32);

line three (23) is fitted with valve three (33).

2. A seeding structure as claimed in claim 1, wherein: also included is line four (24); one end of the pipeline four (24) is communicated with the pipeline three (23), the communication position is positioned between the strain adding cylinder (1) and the valve three (33), and the pipeline four (24) is provided with a valve four (34).

3. A seeding structure according to claim 1 or 2, wherein: all valves are electrically operated valves.

4. A seeding structure as claimed in claim 3, wherein: the automatic control valve is characterized by further comprising a controller (3), wherein the controller (3) is electrically connected with all the valves respectively and used for controlling the opening and closing of all the valves.

5. A seeding structure as claimed in claim 1, wherein: the strain adding cylinder (1) comprises a strain adding cylinder body (11) and a strain adding cylinder cover (12), and the strain adding cylinder cover (12) can be uncovered to cover the strain adding cylinder body (11).

6. A seeding structure as claimed in claim 1, wherein: the second pipeline (22) is positioned at the upstream side of the third pipeline (23); the second pipeline (22) is communicated with the upper part of the strain adding cylinder (1), and the third pipeline (23) is communicated with the lower part of the strain adding cylinder (1).

7. An inoculating device for inoculating strains, which is characterized in that: the inoculation structure comprises a plurality of inoculation structures according to any one of claims 1 to 6, and further comprises an inoculation box (4), wherein a laminar flow hood (5) and a fan (6) arranged on the laminar flow hood are arranged on the inoculation box (4), the fan (6) enables air to enter the inoculation box (4) after being filtered by the laminar flow hood (5) and enables the inside of the inoculation box (4) to keep positive pressure, a strain adding cylinder (1) of the inoculation structure is arranged in the inoculation box (4), and the inoculation box (4) is provided with a box door (41) capable of being opened/closed, so that strains can be added to the strain adding cylinder (1).

8. An inoculating device as claimed in claim 7, in which: the inoculation box (4) is internally provided with a germicidal lamp (42).

9. An inoculating device as claimed in claim 7, in which: and an illuminating lamp (43) is arranged in the inoculation box (4).

10. An inoculation fermentation system, which is characterized in that: comprising a seeding structure according to any one of claims 1 to 6, or comprising a seeding device according to any one of claims 7 to 9; the fermentation tank further comprises a plurality of fermentation tanks (7), each fermentation tank (7) is communicated with the downstream section of the first pipeline (21) through a fifth pipeline (25), the fifth pipeline (25) is provided with a fifth valve (35), and the upstream section of the first pipeline (21) is used for inputting fermentation fluid to be inoculated.

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