Fermentation gas supply system and gas supply method for fermentation gas supply system

Abstract

The application discloses a fermentation gas supply system and a gas supply method of the fermentation gas supply system. In the fermentation gas supply system, a gas supply carrier can supply gas to a first purification inlet and a second purification inlet through a gas output end, and the purified gas can enter a large fermentation unit and a seed tank unit. The purification efficiency of the first and second purification units is different, which can ensure effective purification and supply of the gas, and the gas can be supplied according to the flow size of the required gas, thereby being beneficial to improving the propagation metabolic quality of the strain. In addition, the fermentation gas supply system further comprises a storage container, a container inlet of the storage container is communicated with the first purification container and / or the second purification container, the storage container can store the purified gas, and plays an emergency role. The storage container can also cooperate with the gas supply, is also beneficial to adapting to different gas flow requirements of the strain, and ensures stable gas supply, so as to improve the propagation metabolic quality of the strain, and to a certain extent, solves the technical problem that the propagation metabolic quality of the strain is not ideal.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of biological fermentation, and particularly relates to a fermentation gas supply system and a gas supply method of the fermentation gas supply system. BACKGROUND

[0002] Microbial fermentation refers to a process of converting raw materials into products required by human beings through specific metabolic pathways under suitable conditions by using microorganisms. In the fermentation process, suitable carbon source and nitrogen source need to be provided for the strain as the substrate for strain metabolism. The carbon source and nitrogen source can be supplied in the form of gas to the environment where the strain is located. Stable and appropriate gas can ensure the stable growth of the strain.

[0003] At present, the carbon source and nitrogen source of the strain are supplied by using a gas supply system. The gas treated by a compressor in the gas supply system is transmitted to a purification unit such as a purifier, and then enters the fermentation environment of the strain after being purified by the purification unit. In this gas supply system, the gas flow is prone to fluctuation, which affects the propagation and metabolism quality of the strain. In addition, the strain is prone to change in demand for gas due to its mutation characteristics, and the gas supply system is difficult to meet the different growth requirements of the strain, which also affects the propagation and metabolism quality of the strain, resulting in unsatisfactory propagation and metabolism quality of the strain. SUMMARY

[0004] The present application aims to at least solve the technical problem of unsatisfactory propagation and metabolism quality of the strain to some extent. To this end, the present application provides a fermentation gas supply system and a gas supply method of the fermentation gas supply system.

[0005] The fermentation gas supply system provided by the present application comprises:

[0006] a gas supply carrier provided with a gas output end;

[0007] a first purification unit provided with a first purification outlet and a first purification inlet, the first purification inlet being used for communicating with the gas output end;

[0008] a second purification unit having a maximum purification efficiency greater than that of the first purification unit, the second purification unit being provided with a second purification outlet and a second purification inlet, the second purification inlet being used for communicating with the gas output end;

[0009] a large fermentation unit communicating with the first purification outlet and the second purification outlet;

[0010] a seed tank unit communicating with the first purification outlet and the second purification outlet; and

[0011] A storage container is provided with a container inlet and a container outlet, the container inlet is in communication with the first purification inlet and / or the second purification inlet, and the container outlet is in communication with the seed tank unit.

[0012] In some or certain embodiments, the large fermentation unit comprises a first culture tank, and the seed tank unit comprises a second culture tank, wherein the volume of the first culture tank is greater than the volume of the second culture tank.

[0013] In some or certain embodiments, the fermentation gas supply system further comprises:

[0014] A detection instrument is provided at the container outlet of the storage container and is used to detect the gas components flowing out of the storage container.

[0015] In some or certain embodiments, the fermentation gas supply system further comprises:

[0016] A skid-mounted pressurizing device is provided with a spaced pressurizing inlet and a pressurizing outlet, the pressurizing inlet is in communication with the first purification outlet, and the pressurizing outlet is in communication with the container inlet and the seed tank unit.

[0017] A pressure reducing valve is provided between the container outlet and the seed tank unit.

[0018] In some or certain embodiments, the gas supply carrier is a raw gas buffer tank, and the raw gas buffer tank is provided with an opening configured as the gas output end.

[0019] In some or certain embodiments, the fermentation gas supply system further comprises:

[0020] A first gas supply pipeline is controllable in on-off manner, and two ends thereof are in communication with the first purification outlet and the seed tank unit, respectively.

[0021] A second gas supply pipeline is controllable in on-off manner, and two ends thereof are in communication with the second purification outlet and the large fermentation unit, respectively.

[0022] A first communication pipeline is controllable in on-off manner, and two ends thereof are in communication with the first gas supply pipeline and the second gas supply pipeline, respectively.

[0023] In some or certain embodiments, the fermentation gas supply system comprises a skid-mounted pressurizing device, and the skid-mounted pressurizing device is provided with a pressurizing inlet and a pressurizing outlet,

[0024] The fermentation gas supply system further comprises:

[0025] A second communication pipeline is controllable in on-off manner, and two ends thereof are in communication with the second gas supply pipeline and the pressurizing inlet, respectively, and the second communication pipeline is arranged side by side with the first communication pipeline.

[0026] The pressurization outlet of the pry-mounted pressurization device is communicated with the first gas supply pipeline and the container inlet.

[0027] The third gas supply pipeline, of which the on-off is controllable, has two ends communicated with the container outlet and the seed tank unit respectively.

[0028] The application also provides a gas supply method of the fermentation gas supply system as described above, and the gas supply method comprises:

[0029] According to the culture stage of the seed tank unit, the first purification unit, the storage container or the second purification unit is communicated with the seed tank unit.

[0030] According to the fermentation stage of the fermentation unit, the first purification unit or the second purification unit is communicated with the fermentation unit.

[0031] In some or certain embodiments, the "according to the culture stage of the seed tank unit, the first purification unit, the storage container or the second purification unit is communicated with the seed tank unit" comprises:

[0032] In the inoculation stage of the seed tank unit, the storage container is communicated with the seed tank unit to supply gas to the seed tank unit.

[0033] In the recovery stage of the seed tank unit, the first purification unit is communicated with the seed tank unit to supply gas to the seed tank unit.

[0034] In the expansion stage of the seed tank unit, the first purification unit and the storage container are communicated with the seed tank unit to supply gas to the seed tank unit.

[0035] In some or certain embodiments, before the first purification unit, the storage container or the second purification unit is communicated with the seed tank unit according to the culture stage of the seed tank unit, the gas supply system further comprises: the first purification unit is communicated with the storage container to fill the storage container with the gas.

[0036] According to one or more embodiments of the application, the following beneficial effects are provided:

[0037] The gas supply carrier in the fermentation gas supply system can supply gas to the first purification inlet and the second purification inlet through the gas output end. The gas is purified in the first purification unit and the second purification unit, and then flows out from the first purification outlet of the first purification unit and the second purification outlet of the second purification unit. The purified gas can enter the large fermentation unit and the seed tank unit connected with the first purification outlet and the second purification outlet, and be used by the large fermentation unit and the seed tank unit. The purification efficiency of the first purification unit and the second purification unit is different, which can ensure effective purification and supply of the gas, and the first purification unit or the second purification unit can be used to process and supply the gas according to the flow rate of the required gas, which is conducive to adapting to the different gas flow rate requirements of the strains and realizing stable gas supply, and is conducive to improving the propagation and metabolism quality of the strains. The fermentation gas supply system further comprises a storage container, the container inlet of the storage container is connected with the first purification container and / or the second purification container, and the container outlet of the storage container is connected with the seed tank unit. The storage container can store part of the gas purified by the first and second purification units, and can supply gas to the seed tank unit in case of problems in the gas source or the gas supply carrier connected with the purification unit, or in case of faults in the first and second purification units, so as to play an emergency role, save the strains in the seed tank unit, and reduce the occurrence of secondary inoculation. The storage container can also supply gas to the seed tank unit in cooperation with the purification units with different purification efficiencies, which is also conducive to adapting to the different gas flow rate requirements of the strains and ensuring stable gas supply to improve the propagation and metabolism quality of the strains, and to a certain extent, solves the technical problem that the propagation and metabolism quality of the strains is not ideal. BRIEF DESCRIPTION OF DRAWINGS

[0038] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0039] Figure 1 The structure of a fermentation gas supply system in some embodiments or certain embodiments of the present application is shown.

[0040] Figure 2 The gas supply method flow chart of a fermentation gas supply system in some embodiments or certain embodiments of the present application is shown.

[0041] Explanation of reference signs: 1, first purification unit; 101, first purification inlet; 102, first purification outlet; 2, second purification unit; 201, second purification inlet; 202, second purification outlet; 3, large fermentation unit; 301, first culture bin; 4, seed tank unit; 401, second culture bin; 5, storage container; 501, container inlet; 502, container outlet; 6, gas supply carrier; 601, gas output end; 7, skid-mounted pressurizing device; 701, pressurizing inlet; 702, pressurizing outlet; 8, pressure reducing valve; 9, first gas supply pipeline; 10, second gas supply pipeline; 11, first communication pipeline; 12, second communication pipeline; 13, third gas supply pipeline; 14, control valve. DETAILED DESCRIPTION

[0042] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0043] It should be noted that all directional indications in the embodiments of the present application are only used to explain the relative positional relationship, movement condition and the like between components in a certain posture, and if the certain posture changes, the directional indications also change accordingly.

[0044] In the present application, unless otherwise explicitly specified and limited, the terms "connection", "fixation" and the like should be understood in a broad sense, for example, "fixation" can be fixed connection, or detachable connection, or integral; can be mechanical connection, or electrical connection; can be direct connection, or indirect connection through an intermediate medium; can be internal connection of two elements or interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0045] In addition, the description such as "first", "second" and the like in the present application is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the fact that a person skilled in the art can realize it, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the scope of protection claimed by the present application.

[0046] The present application will be described below with reference to the drawings:

[0047] Figure 1 A structural schematic diagram of a fermentation gas supply system in some embodiments or certain embodiments of the present application is shown, referring to Figure 1 It can be known that the present application provides a fermentation gas supply system, comprising:

[0048] The gas supply carrier 6 is provided with a gas output end 601.

[0049] The first purification unit 1 is provided with a first purification outlet 102 and a first purification inlet 101, and the first purification inlet 101 is used for connecting the gas output end 601.

[0050] The second purification unit 2 has a maximum purification efficiency greater than that of the first purification unit 1, and the second purification unit 2 is provided with a second purification outlet 202 and a second purification inlet 201, and the second purification inlet 201 is used for connecting the gas output end 601.

[0051] The large fermentation unit 3 is connected with the first purification outlet 102 and the second purification outlet 202.

[0052] The seed tank unit 4 is connected with the first purification outlet 102 and the second purification outlet 202, and

[0053] The storage container 5 is provided with a container inlet 501 and a container outlet 502, the container inlet 501 is connected with the first purification inlet 101 and / or the second purification inlet 201, and the container outlet 502 is connected with the seed tank unit 4.

[0054] The gas supply carrier 6 in the fermentation gas supply system can supply gas to the first purification inlet 101 and the second purification inlet 201 through the gas output end 601. The gas is purified in the first purification unit 1 and the second purification unit 2, and then flows out from the first purification outlet 102 of the first purification unit 1 and the second purification outlet 202 of the second purification unit 2. The purified gas can enter the large fermentation unit 3 and the seed tank unit 4 connected with the first purification outlet 102 and the second purification outlet 202, and be used by the large fermentation unit 3 and the seed tank unit 4. The purification efficiency of the first purification unit 1 and the second purification unit 2 is different, which can ensure effective purification and supply of the gas, and the first purification unit 1 or the second purification unit 2 can be used to process and supply the gas according to the flow rate of the required gas, which is conducive to adapting to the different gas flow requirements of the strains and realizing stable gas supply, and is conducive to improving the propagation and metabolism quality of the strains. The fermentation gas supply system further comprises a storage container 5, the container inlet 501 of the storage container 5 is connected with the first purification container and / or the second purification container, and the container outlet 502 of the storage container 5 is connected with the seed tank unit 4. Therefore, the storage container 5 can store part of the gas purified by the first and second purification units, and can supply gas to the seed tank unit 4 in case of problems in the gas source connected with the purification unit or the gas supply carrier 6 or faults in the first and second purification units, thereby playing an emergency role, preserving the strains in the seed tank unit 4, and reducing the occurrence of secondary inoculation. The storage container 5 can also supply gas to the seed tank unit 4 in cooperation with the purification units with different purification efficiencies, which is also conducive to adapting to the different gas flow requirements of the strains and ensuring stable gas supply to improve the propagation and metabolism quality of the strains, and to a certain extent, solves the technical problem that the propagation and metabolism quality of the strains is not ideal.

[0055] In addition, the first and second purification units cooperate with the storage container 5 to enable the required gas for the strains to be supplied more stably, the strains are less likely to encounter gas supply interruption or large gas flow fluctuation during growth, the activity of the strains is relatively stable, the occurrence of secondary inoculation and the need to restart the production line where the strains are located is reduced, the normal operation of the production line where the strains are located is ensured, and the production efficiency of the strains is improved.

[0056] It should be noted that in the fermentation gas supply system, the connection between the purification outlet of the purification unit and the gas inlet of the large fermentation unit 3 and the seed tank unit 4, the connection between the container inlet 501 of the storage container 5 and the purification outlet, and the connection between the container outlet 502 and the gas inlet of the seed tank unit 4 can be achieved by corresponding pipelines, and each pipeline can be provided with a control valve 14 for controlling the opening and closing of the pipeline. The different pipelines or the pipelines and different inlets and outlets can be connected through joints, multi-ways, etc. The size of the purification efficiency in the present application is indicated by the size of the clean air output rate.

[0057] In some or certain embodiments, the large fermentation unit 3 comprises a first culture tank 301, and the seed tank unit 4 comprises a second culture tank 401, wherein the volume of the first culture tank 301 is greater than the volume of the second culture tank 401.

[0058] The first culture tank 301 of the large fermentation unit 3 is greater than the second culture tank 401 of the seed tank unit 4, the first culture tank 301 and the second culture tank 401 can be used for culturing the seed, the volume of the first culture tank 301 is greater than the volume of the second culture tank 401, the cost of culturing the seed can be controlled according to the culturing requirement, the cost of culturing the seed is reduced, the volumes of the first and second culture tanks are different, and the first and second purification units with different purification efficiencies can be used to supply gas to the large fermentation unit 3 and the seed tank unit 4, respectively, the distribution is more reasonable, the energy consumption and the cost of use are lower, and the stable culturing of the seed can be ensured.

[0059] It should be noted that the volume of the first culture tank 301 can be greater than the volume of the second culture tank 401, and then the space for culturing the seed in the first culture tank 301 can also be greater than the space for culturing the seed in the second culture tank 401.

[0060] In some or certain embodiments, the first purification unit 1 can comprise a compressor (not shown in the figure), a water washing device such as a water washing tower (not shown in the figure), an electric tar precipitator (not shown in the figure), a benzene removal tower (not shown in the figure), an oxygen removal tower (not shown in the figure), a desulfurization and decyanation device (not shown in the figure), and the like, which are sequentially connected in the conveying order. The purity of the gas can be effectively improved. By adjusting the scale of the compressor and the corresponding device in the purification unit, the first and second purification units with different purification efficiencies can be obtained. The inlet of the compressor can be configured as a corresponding purification inlet, and the gas outlet of the desulfurization and decyanation device can be configured as a corresponding purification outlet.

[0061] In some or certain embodiments, the storage container 5 can be a storage tank or the like, which can store more gas and has a certain pressure-bearing capacity.

[0062] In some or certain embodiments, the fermentation gas supply system further comprises a detection instrument (not shown in the figure) arranged at the container outlet 502 of the storage container 5 and used for detecting the components of the gas flowing out of the storage container 5. The arrangement of the detection instrument can detect the components of the gas flowing out of the storage container 5, so as to ensure that the gas in the storage container 5 is beneficial to the culturing of the seed and is beneficial to improving the production quality of the seed.

[0063] In some or certain embodiments, the fermentation gas supply system can comprise at least two storage containers 5, and the container outlet 502 of each storage container 5 can be connected to the seed tank unit 4. The storage capacity of the gas that can be stored can be increased to improve the emergency capability, and the storage container 5 and the purification unit can also meet the requirement of different gas flow of the seed in the seed tank unit 4.

[0064] In some or certain embodiments, the fermentation gas supply system further comprises:

[0065] The pry-mounted pressurizing device 7 is provided with a spaced pressurizing inlet 701 and a pressurizing outlet 702. The pressurizing inlet 701 is in communication with the first purification outlet 102, and the pressurizing outlet 702 is in communication with the container inlet 501 and the seed tank unit 4.

[0066] The pressure reducing valve 8 is arranged between the container outlet 502 and the seed tank unit 4.

[0067] The pry-mounted pressurizing device 7 further purifies the gas flowing out of the corresponding purification outlet of the first purification unit 1, improves the purity of the gas entering the storage container 5 and the seed tank unit 4, and the pry-mounted pressurizing device 7 itself can also transport the gas processed by the first purification unit 1 to the seed tank unit 4, and cooperate with the storage unit to adjust the flow of the gas entering the seed tank unit 4, which is conducive to improving the quality of the seed in the seed tank unit 4. The storage container 5 is provided with a pressure reducing valve 8. The gas storage capacity of the storage container 5 can be increased to improve the emergency capability, and the pressure reducing valve 8 arranged after the storage container 5 can adjust the gas pressure in the storage container 5 to a more appropriate pressure range, which is conducive to the cultivation of the seed.

[0068] In some or certain embodiments, the pry-mounted pressurizing device 7 can include an integrated pressurizing centrifuge, a sealing system, and a cooling system, and can also include a controller for controlling the operation of the pressurizing centrifuge and the cooling system, etc. The inlet of the pressurizing centrifuge is configured as the gas inlet of the pry-mounted pressurizing device 7, and the outlet of the cooling system can be configured as the pressurizing outlet 702 of the pry-mounted pressurizing device 7. The purity of the gas entering the seed tank unit 4 can be effectively improved, which is conducive to the cultivation of the seed.

[0069] In some or certain embodiments, the pry-mounted pressurizing device 7 can also include an integrated pressurizing valve (not shown in the figure), a filter, and the like. It can also play a role in pressurization and filtration.

[0070] In some or certain embodiments, the gas supply carrier 6 is a raw material gas buffer tank, and the raw material gas buffer tank is provided with an opening configured as a gas output end 601. The gas received by the purification unit comes from the raw material gas buffer tank, which can process industrial tail gas and apply it in the seed cultivation process, which is more energy-saving and environmentally friendly.

[0071] In some or certain embodiments, the gas received by the purification inlet of the purification unit can also be adjusted according to needs. The raw material gas buffer tank can be an iron alloy raw material gas buffer tank.

[0072] In some or certain embodiments, the fermentation gas supply system further comprises:

[0073] The first gas supply pipeline 9 is controllable, and two ends thereof are connected with the first purification outlet 102 and the seed tank unit 4 respectively.

[0074] The second gas supply pipeline 10 is controllable, and two ends thereof are connected with the second purification outlet 202 and the large fermentation unit 3 respectively.

[0075] The first communication pipeline 11 is controllable, and two ends thereof are connected with the first gas supply pipeline 9 and the second gas supply pipeline 10 respectively.

[0076] The first communication pipeline 11 is controllable, and two ends thereof are connected with the first gas supply pipeline 9 and the second gas supply pipeline 10 respectively.

[0077] In some or certain embodiments, the fermentation gas supply system comprises a skid-mounted pressurizing device 7, which is provided with a pressurizing inlet 701 and a pressurizing outlet 702. The fermentation gas supply system can further comprise:

[0078] The second communication pipeline 12 is controllable, and two ends thereof are connected with the second gas supply pipeline 10 and the pressurizing inlet 701 respectively, and the second communication pipeline 12 is arranged side by side with the first communication pipeline 11.

[0079] The pressurizing outlet 702 of the skid-mounted pressurizing device 7 is connected with the first gas supply pipeline 9 and the container inlet 501.

[0080] The third gas supply pipeline 13 is controllable, and two ends thereof are connected with the container outlet 502 and the seed tank unit 4 respectively.

[0081] The skid-mounted pressurizing device 7 is connected with the aforementioned pipelines in the above manner, and the volume occupied by the related pipelines is small, and the overall structure is more compact.

[0082] It should be noted that the controllable pipeline involved in the present application can be provided with at least one control valve 14 on the corresponding pipeline to realize the controllable connection.

[0083] Figure 2 A flow chart of a gas supply method of a fermentation gas supply system in some or certain embodiments of the present application is shown, and reference is made to Figure 2 Based on the same inventive concept, the present application further provides a gas supply method of a fermentation gas supply system, which can be realized by using the fermentation gas supply system as described above, and the gas supply method comprises the following steps.

[0084] S101: According to the culture stage of the seed tank unit, the first purification unit, the storage container or the second purification unit is connected with the seed tank unit.

[0085] S102: According to the fermentation stage of the fermentation unit, the first purification unit or the second purification unit is connected with the fermentation unit.

[0086] The structure of the fermentation gas supply system and its corresponding technical effects can refer to the foregoing, and will not be described here again. In the use of the fermentation gas supply system, the first purification unit, the storage container or the second purification unit can be communicated with the seed tank unit according to the culture stage of the seed tank unit, and the first purification unit or the second purification unit can be communicated with the fermentation unit according to the fermentation stage of the fermentation unit. The appropriate gas can be provided at different stages of the growth of the strain to ensure that the strain has good propagation and metabolism quality at different stages.

[0087] In step S101 of some or certain embodiments, “the first purification unit, the storage container or the second purification unit is communicated with the seed tank unit according to the culture stage of the seed tank unit”, which includes:

[0088] In the inoculation stage of the seed tank unit, the storage container is communicated with the seed tank unit to supply gas to the seed tank unit.

[0089] In the recovery stage of the seed tank unit, the first purification unit is communicated with the seed tank unit to supply gas to the seed tank unit.

[0090] In the expansion stage of the seed tank unit, the first purification unit and the storage container are communicated with the seed tank unit to supply gas to the seed tank unit.

[0091] The small gas flow can meet the gas demand of the strain in the inoculation stage and the recovery stage, so the first purification unit with small purification efficiency and the storage container can be used to supply gas to the strain in the seed tank unit, and the first purification unit and the storage container can be used to supply gas to the seed tank unit in the expansion stage and the production stage of the strain. It is more energy-saving and can ensure that the seed tank unit is supplied with more stable gas.

[0092] In some or certain embodiments, the gas flow supplied to the seed tank unit gradually increases in the inoculation stage, the recovery stage and the expansion stage of the seed tank unit. It is beneficial to adapt to the gas demand of the strain at different stages.

[0093] In step S102 of some or certain embodiments, the second purification unit with large purification efficiency can be communicated with the large fermentation unit. The gas supplied by the gas supply carrier can be treated by the second purification unit and then delivered to the large fermentation unit. This gas supply mode has better propagation and metabolism quality of the strain, and effectively reduces the overall energy consumption of the fermentation gas supply system, which plays a role in reducing cost and increasing efficiency.

[0094] It should be noted that when the large fermentation unit and the seed tank unit need to be supplied with gas through a certain route in the present application, it means that the gas supply carrier supplies the corresponding large fermentation unit and seed tank unit through this overall communication route.

[0095] In some or certain embodiments, according to the culture stage of the seed tank unit, before the first purification unit, the storage container or the second purification unit is communicated with the seed tank unit, the gas supply system further comprises: communicating the first purification unit with the storage container, so that the storage container is filled with gas.

[0096] The storage container can be ensured to be filled with gas, which is beneficial to improve the emergency capability of the storage container. The first purification unit is used to fill the storage container with gas, and the energy consumption is relatively small, which is beneficial to reduce the use cost of the fermentation gas supply system.

[0097] In some or certain embodiments, under the premise that the fermentation gas supply system further comprises a skid-mounted pressurizing device, "communicating the first purification unit with the storage container, so that the storage container is filled with gas" comprises:

[0098] The first purification unit is communicated with the skid-mounted pressurizing device, and the skid-mounted pressurizing device is communicated with the storage container. The gas can obtain a better purification effect, which is beneficial to improve the quality of the gas in the storage container, so as to improve the propagation and metabolism quality of the strain.

[0099] In some or certain embodiments, the gas supply method can further comprise:

[0100] If the first purification unit and the second purification unit fail, the storage container containing gas is communicated with the seed tank unit.

[0101] The emergency capability can be ensured, and the normal operation of the production line where the strain is located can be ensured.

[0102] It should be noted that when the strain in the seed tank unit is in a certain stage, the first purification unit, the skid-mounted pressurizing device and the storage container can be communicated, and at the same time, the first purification unit can also be communicated with the storage container. The first purification unit can supply gas to the storage container and the seed tank unit at the same time, which can ensure that the strain grows stably and at the same time, the gas in the storage container can be ensured to be relatively sufficient.

[0103] In some or certain embodiments, the fermentation gas supply system further comprises a skid-mounted pressurizing device, which is provided with a pressurizing inlet and a pressurizing outlet, the pressurizing inlet is communicated with the first purification outlet, and the pressurizing outlet is communicated with the container inlet and the seed tank unit. The gas supply method can further comprise:

[0104] If the fermentation gas supply system is in a major repair state, the skid-mounted pressurizing device draws the pipe network buffer or the buffer gas of the large fermentation unit to supply gas to the seed tank system. The quality of the strain in the seed tank unit can be ensured.

[0105] It should be noted that the fermentation gas supply system is in a major repair state, the upstream gas supply is stopped or the equipment in the plant is repaired and modified, and the production line related to the strain is in a shutdown state. The pipe network can be a small amount of purified gas in the pipeline in the fermentation gas supply system, and the buffer gas in the large fermentation unit can be the gas buffered in advance in the large fermentation unit before the major repair.

[0106] In the description of the specification, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and integrate different embodiments or examples described in the specification.

[0107] In addition, the technical solutions among various embodiments can be combined with each other, but it must be based on the fact that a person skilled in the art can realize it, and when the combination of technical solutions appears contradictory or cannot be realized, it should be considered that the combination of technical solutions does not exist and is not within the protection scope required by the present application.

[0108] Although the embodiments of the present application have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and purposes of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. A fermentation gas supply system characterized by, The fermentation air supply system comprises: an air supply carrier provided with a gas output end; a first purification unit provided with a first purification outlet and a first purification inlet, the first purification inlet being used for connecting the gas output end; a second purification unit with a maximum purification efficiency greater than that of the first purification unit, the second purification unit being provided with a second purification outlet and a second purification inlet, the second purification inlet being used for connecting the gas output end; the purification efficiency being determined by the size of the clean air output ratio; a large fermentation unit connected to the first purification outlet and the second purification outlet; a seed tank unit connected to the first purification outlet and the second purification outlet; and a storage container provided with a container inlet and a container outlet, the container inlet being connected to the first purification inlet and / or the second purification inlet, and the container outlet being connected to the seed tank unit; the large fermentation unit comprises a first culture bin, and the seed tank unit comprises a second culture bin, the volume of the first culture bin being greater than that of the second culture bin.

2. The fermentation gas supply system of claim 1, wherein, The fermentation air supply system further comprises: a detection instrument arranged at the container outlet of the storage container and used for detecting the gas components flowing out of the storage container.

3. The fermentation gas supply system according to any one of claims 1-2, characterized in that, The fermentation air supply system further comprises: a skid-mounted pressurizing device provided with a spaced pressurizing inlet and a pressurizing outlet, the pressurizing inlet being connected to the first purification outlet, and the pressurizing outlet being connected to the container inlet and the seed tank unit; a pressure reducing valve arranged between the container outlet and the seed tank unit.

4. The fermentation gas supply system according to any one of claims 1 to 2, characterized in that The air supply carrier is a raw material gas buffer tank, and the raw material gas buffer tank is provided with an opening configured as the gas output end.

5. The fermentation gas supply system according to any one of claims 1 to 2, wherein The fermentation air supply system further comprises: a first air supply pipeline with controllable opening and closing, two ends of the first air supply pipeline being connected to the first purification outlet and the seed tank unit, respectively; a second air supply pipeline with controllable opening and closing, two ends of the second air supply pipeline being connected to the second purification outlet and the large fermentation unit, respectively; a first communication pipeline with controllable opening and closing, two ends of the first communication pipeline being connected to the first air supply pipeline and the second air supply pipeline, respectively.

6. The fermentation gas supply system of claim 5, wherein, The fermentation air supply system comprises a skid-mounted pressurizing device provided with a pressurizing inlet and a pressurizing outlet, The fermentation air supply system further comprises: a second communication pipeline with controllable opening and closing, the second communication pipeline being arranged side by side with the first communication pipeline and connected to the second air supply pipeline and the pressurizing inlet, respectively; the pressurizing outlet of the skid-mounted pressurizing device being connected to the first air supply pipeline and the container inlet; a third air supply pipeline with controllable opening and closing, two ends of the third air supply pipeline being connected to the container outlet and the seed tank unit, respectively.

7. An air supply method of the fermentation air supply system according to any one of claims 1 to 6, the air supply method comprising: connecting the first purification unit, the storage container or the second purification unit to the seed tank unit according to the culture stage of the seed tank unit; connecting the first purification unit or the second purification unit to the fermentation unit according to the fermentation stage of the fermentation unit.

8. The method of claim 7, wherein, The "connecting the first purification unit, the storage container or the second purification unit to the seed tank unit according to the culture stage of the seed tank unit" comprises: In the inoculation stage of the seed tank unit, the storage container is communicated with the seed tank unit to supply the seed tank unit with the gas; In the recovery stage of the seed tank unit, the first purification unit is communicated with the seed tank unit to supply the seed tank unit with the gas; In the expansion stage of the seed tank unit, the first purification unit and the storage container are communicated with the seed tank unit to supply the seed tank unit with the gas.

9. The method of claim 7, wherein, According to the culture stage of the seed tank unit, before the first purification unit, the storage container or the second purification unit is communicated with the seed tank unit, the gas supply system further comprises: communicating the first purification unit with the storage container to fill the storage container with the gas.

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