Microfiltration sterilization device

Abstract

The utility model relates to a microfiltration sterilization device which comprises a microfiltration filter, the inlet end and the outlet end of the microfiltration filter are respectively connected with an input pipeline and an output pipeline, the output pipeline is provided with a discharge switch valve, and the tail end of the output pipeline is detachably connected with a discharge pipeline; the outlet end of the steam disinfection pipeline can be connected to the input pipeline in an on-off bypass manner; the lower port of the material tank is connected with the input pipeline in an on-off manner; the sterile compressed air pipeline can be connected with the input pipeline in an on-off manner or can be connected with the upper port of the material tank in an on-off manner; a sterile cavity is formed in the sterile chamber, and the tail end of the output pipeline, the discharging switch valve and the inlet end of the discharging pipeline are all located in the sterile cavity; and a placing area is arranged in the sterile cavity and is used for placing a filling container. According to the utility model, rapid disinfection and cooling can be realized, rapid preparation of equipment before use is realized, pollution can be effectively prevented, sterility of materials is ensured, and waste of the materials can be prevented when fewer materials are treated.

Description

Technical Field

[0001] The utility model relates to the technical field of filtration equipment, in particular to a microfiltration and sterilization device. Background Art

[0002] At present, for the microfiltration and sterilization devices available on the market, the amount of materials used in the microfiltration and sterilization equipment for industrial production is very large each time, while the amount of materials filtered by the devices for laboratory microfiltration is too small each time, and the range of material usage is relatively limited. At the same time, the preparation stage of the equipment before each use (including disinfection and cooling) is very cumbersome. At present, before use, the equipment is generally disassembled into multiple small parts and then sterilized by steaming in a pressure cooker, and then naturally cooled. After cooling, the multiple loose parts are assembled again. Not only the disinfection time and the cooling time are both long, but there is also a possibility of secondary pollution when reassembling the parts. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a microfiltration and sterilization device, which can achieve rapid disinfection and cooling, realize the rapid preparation of the equipment before use, and can effectively prevent pollution and ensure the sterility of the materials, and can also prevent the waste of materials when dealing with less materials.

[0004] The purpose of the utility model is realized as follows. A microfiltration and sterilization device includes:

[0005] A microfiltration filter, an input pipeline and an output pipeline are respectively connected to its inlet end and outlet end. A discharge switch valve is arranged at a position close to the end of the output pipeline, and the end of the output pipeline is detachably connected with a discharge pipeline;

[0006] A steam disinfection pipeline, its outlet end is bypassed on the input pipeline in a switchable manner, and a steam filter and a steam pressure reducing valve are arranged on the steam disinfection pipeline;

[0007] A material tank, its lower port is connected to the input pipeline in a switchable manner;

[0008] A sterile compressed air pipeline is connected to the input pipeline in a switchable manner, or is connected to the upper port of the material tank in a switchable manner; and an air filter and a compressed air pressure reducing valve are arranged on the sterile compressed air pipeline;

[0009] A sterile chamber, a sterile cavity is formed inside it, the end of the output pipeline, the discharge switch valve and the inlet end of the discharge pipeline are all located in the sterile cavity; and a placement area is arranged in the sterile cavity and opposite to the end of the output pipeline for placing filling containers.

[0010] In a preferred embodiment of the utility model, the inlet end and the outlet end of the microfiltration filter are respectively detachably connected to the input pipeline and the output pipeline.

[0011] In a preferred embodiment of the present utility model, the discharge switch valve is a diaphragm valve. An operation port is provided on the side wall of the sterile chamber, and an operation glove is installed at the operation port.

[0012] In a preferred embodiment of the present utility model, the air filter includes a coarse filter, an oil and water removal filter, and a sterile filter. The coarse filter, the oil and water removal filter, the sterile filter, and the compressed air pressure reducing valve are arranged in sequence from the inlet end to the outlet end of the sterile compressed air pipeline.

[0013] In a preferred embodiment of the present utility model, a hose is connected to the inlet end of the input pipeline, and the hose can be connected to the lower port of the material tank, the outlet end of the sterile compressed air pipeline, the material pumping pipeline, the water pumping pipeline, or the lye pumping pipeline.

[0014] In a preferred embodiment of the present utility model, the discharge pipeline includes a cleaning pipeline and a discharge pipeline. A transfer pipe is also provided in the sterile cavity. The end of the output pipeline is detachably connected to the first end of the transfer pipe through a first connector, and the second end of the transfer pipe is detachably connected to the inlet end of the cleaning pipeline or the inlet end of the discharge pipeline through a second connector.

[0015] In a preferred embodiment of the present utility model, the steam filter includes a coarse steam filter and a fine steam filter. The coarse steam filter, the steam pressure reducing valve, and the fine steam filter are arranged in sequence from the inlet end to the outlet end of the steam disinfection pipeline.

[0016] In a preferred embodiment of the present utility model, a first steam trap is also connected in a switchable manner in parallel between the coarse steam filter and the steam pressure reducing valve on the steam disinfection pipeline. A second steam trap is connected in a switchable manner to the bottom end of the fine steam filter. A third steam trap is provided on the discharge pipeline.

[0017] In a preferred embodiment of the present utility model, a first switch valve is provided at a position close to the opening end of the input pipeline. A second switch valve is provided at a position close to the outlet end of the steam disinfection pipeline. A third switch valve is also provided on the steam disinfection pipeline between the pipeline where the first steam trap is located and the steam pressure reducing valve. A fourth switch valve is provided on the pipeline where the first steam trap is located. A fifth switch valve is provided on the pipeline where the second steam trap is located. An exhaust pipe is connected to the top of the microfiltration filter, and a sixth switch valve is provided on the exhaust pipe.

[0018] In a preferred embodiment of the present utility model, the discharge switch valve, the first switch valve, the second switch valve, the third switch valve, the fourth switch valve, the fifth switch valve and the sixth switch valve are all manual valves; a first pressure gauge is provided at a position near the inlet of the steam pressure reducing valve on the steam disinfection pipeline, a second pressure gauge is provided at a position near the outlet end of the steam disinfection pipeline, a third pressure gauge is provided at the top of the microfiltration filter, and a thermometer is provided on the discharge pipeline.

[0019] As described above, for the microfiltration and sterilization device of the present utility model, by providing a steam disinfection pipeline, the input pipeline, the microfiltration filter and the discharge switch valve can be sterilized by steam, and rapid disinfection can be achieved; by providing a sterile compressed air pipeline, the input pipeline, the microfiltration filter and the discharge switch valve can be purged with sterile air, and rapid cooling can be achieved; thus, rapid preparation of the equipment before use can be realized; moreover, during the disinfection and cooling stage, the device does not need to be disassembled and reassembled, avoiding secondary pollution. At the same time, by providing a sterile room, the end of the input pipeline, the discharge switch valve and the placement area for placing the filling containers are all arranged in the sterile room, which can effectively ensure the sterile environment during the material filtration stage and effectively prevent material contamination. In addition, through the cooperation of the sterile compressed air pipeline and the material tank, in the case of a small amount of material to be filtered, the material can also be well fed into the microfiltration filter, preventing waste of materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The following drawings are only intended to illustrate and explain the present utility model and do not limit the scope of the present utility model. Among them:

[0021] Figure 1 : is a schematic structural diagram of the microfiltration and sterilization device provided by the present utility model.

[0022] Explanation of the reference numerals in the drawings:

[0023] 1. Input pipeline; 11. First switch valve;

[0024] 2. Microfiltration filter; 21. Exhaust pipe; 22. Sixth switch valve; P3. Third pressure gauge;

[0025] 3. Output pipeline; 31. Discharge switch valve;

[0026] 41. Cleaning pipeline; 42. Discharge pipeline; 421. Third steam trap; T1. Thermometer;

[0027] 5. Steam disinfection pipeline; 51. Coarse steam filter; 52. Steam pressure reducing valve; 53. Fine steam filter; 54. First steam trap; 55. Second steam trap; 56. Second switch valve; 57. Third switch valve; 58. Fourth switch valve; 59. Fifth switch valve; P1. First pressure gauge; P2. Second pressure gauge;

[0028] 6. Material tank

[0029] 7. Sterile compressed air pipeline; 71. Coarse filter; 72. Oil and water removal filter; 73. Sterile filter; 74. Compressed air pressure reducing valve

[0030] 8. Sterile room Detailed implementation manners

[0031] For a clearer understanding of the technical features, objectives and effects of the present utility model, the specific implementation manners of the present utility model will be described below with reference to the accompanying drawings.

[0032] As Figure 1 shown, this embodiment provides a microfiltration sterilization device, including:

[0033] A microfiltration filter 2, with an input pipeline 1 and an output pipeline 3 respectively connected to its inlet end and outlet end. A discharge switch valve 31 is provided at a position near the end of the output pipeline 3, and the end of the output pipeline 3 is detachably connected to a discharge pipeline;

[0034] A steam disinfection pipeline 5, whose outlet end is bypassed on the input pipeline 1 in a switchable manner, and a steam filter and a steam pressure reducing valve 52 are provided on the steam disinfection pipeline 5;

[0035] A material tank 6, whose lower port is connected to the input pipeline 1 in a switchable manner;

[0036] A sterile compressed air pipeline 7, which is connected to the input pipeline 1 in a switchable manner, or is connected to the upper port of the material tank 6 in a switchable manner; and an air filter and a compressed air pressure reducing valve 74 are provided on the sterile compressed air pipeline 7;

[0037] A sterile room 8, with a sterile cavity formed inside. The end of the output pipeline 3, the discharge switch valve 31 and the inlet end of the discharge pipeline are all located inside the sterile cavity; a placement area is provided inside the sterile cavity and opposite to the end of the output pipeline 3 for placing filling containers.

[0038] During operation, it is divided into a preparation stage and a filtration stage. The preparation stage includes a water flushing stage, an alkali washing stage, a steam disinfection stage, and a cooling stage in sequence. After flushing the input pipeline 1, the microfiltration filter 2, and the discharge switch valve 31 with water and alkali solution in sequence, the steam disinfection pipeline 5 is connected to the input pipeline 1. After the steam is filtered by the steam filter and the required steam pressure is adjusted by the steam pressure reducing valve 52, it then passes through the input pipeline 1 and the microfiltration filter 2 to sterilize the microfiltration filter 2. The steam then passes through the discharge switch valve 31 and is discharged through the discharge pipeline. Then it enters the cooling stage. The sterile compressed air pipeline 7 is connected to the input pipeline 1. After the compressed air is filtered by the air filter and the required pressure is adjusted by the compressed air pressure reducing valve 74, the sterile air purges and cools the input pipeline 1 and the microfiltration filter 2, and then is discharged through the discharge switch valve 31 and the discharge pipeline.

[0039] Next, it enters the filtration stage to filter the material. At this time, the steam disinfection pipeline 5 is not connected to the input pipeline 1, and the filling containers are placed in advance in the sterile room 8. If the amount of the material to be filtered is large, the material tank 6 is not used. The inlet end of the input pipeline 1 is directly connected to a material pumping pipeline, the end of the input pipeline 1 is not connected to the discharge pipeline, and the discharge switch valve 31 is opened. The material is directly pumped into the input pipeline 1 through the material pumping pipeline. After being filtered by the microfiltration filter 2, the material passes through the discharge switch valve 31 and is directly filled into the filling container from the end of the input pipeline 1; if the amount of the material to be filtered is small, the upper port and the lower port of the material tank 6 are respectively connected to the sterile compressed air pipeline 7 and the input pipeline 1. The material is pre-filled in the material tank 6. The end of the input pipeline 1 is not connected to the discharge pipeline, and the discharge switch valve 31 is opened. By the action of the sterile air generated by the sterile compressed air pipeline 7, the material in the material tank 6 can be pushed into the microfiltration filter 2. After being filtered by the microfiltration filter 2, the material passes through the discharge switch valve 31 and is directly filled into the filling container from the end of the input pipeline 1.

[0040] Thus, in the microfiltration sterilization device of this embodiment, by providing a steam sterilization pipeline 5, the input pipeline 1, the microfiltration filter 2, and the discharge switch valve 31 can be sterilized using steam, enabling rapid sterilization; by providing a sterile compressed air pipeline 7, the input pipeline 1, the microfiltration filter 2, and the discharge switch valve 31 can be purged using sterile air, enabling rapid cooling; thus, rapid preparation of the equipment before use can be achieved; moreover, during the disinfection and cooling stages, there is no need to disassemble and reassemble the device, avoiding secondary contamination. At the same time, by providing a sterile chamber 8, the end of the input pipeline 1, the discharge switch valve 31, and the placement area for placing the filling containers are all arranged inside the sterile chamber 8, which can effectively ensure the sterile environment during the material filtration stage and effectively prevent material contamination. Additionally, through the cooperation of the sterile compressed air pipeline 7 and the material tank 6, even when the amount of the material to be filtered is small, the material can be well fed into the microfiltration filter 2, preventing waste of the material.

[0041] In a specific implementation manner, the inlet end and the outlet end of the microfiltration filter 2 are detachably connected to the input pipeline 1 and the output pipeline 3 respectively.

[0042] The device may include a plurality of microfiltration filters 2 of different specifications, and the diameters of the filter elements of each microfiltration filter 2 are different. For example, the diameter of the filter element can be 2.5 inches, 5 inches, 10 inches, etc. By detachably connecting the microfiltration filter 2 to the input pipeline 1 and the output pipeline 3, a wider range of material usage amounts can be selected, and the range of material usage amounts is wider. During installation, according to the amount of the material to be processed, a microfiltration filter 2 of a matching specification can be selected and replaced, which can effectively improve the recovery rate of the filtered material and reduce the cleaning cost.

[0043] The above-mentioned discharge switch valve 31 preferably adopts a diaphragm valve, which has better asepticity.

[0044] The discharge switch valve 31 preferably adopts a manual valve. An operation opening is provided on the side wall of the sterile chamber 8, and an operation glove is installed at the operation opening. The sterile cavity of the entire sterile chamber 8 is a closed chamber. The operator can put on the operation glove and manually operate the opening and closing of the discharge switch valve 31 and the connection between the input pipeline 1 and the discharge pipeline, effectively ensuring asepticity.

[0045] Furthermore, the air filter includes a coarse filter 71, an oil and water removal filter 72, and a sterile filter, which respectively perform coarse filtration, oil and water removal filtration, and sterile filtration on the compressed air to obtain sterile compressed air; the coarse filter 71, the oil and water removal filter 72, the sterile filter 73, and the compressed air pressure reducing valve 74 are arranged in sequence from the inlet end to the outlet end of the sterile compressed air pipeline 7.

[0046] In order to facilitate the connection of the input pipeline 1 to the material tank 6 or the sterile compressed air pipeline 7 conveniently and to facilitate water flushing and caustic washing; a hose is connected to the inlet end of the input pipeline 1, and the hose can be connected to the lower port of the material tank 6, the outlet end of the sterile compressed air pipeline 7, the material pumping pipeline, the water pumping pipeline or the caustic liquid pumping pipeline.

[0047] When water flushing and caustic washing operations are required, the water pumping pipeline and the caustic liquid pumping pipeline are respectively connected to the hose. When sterile air purging and cooling are required, the sterile compressed air pipeline 7 can be connected to the hose. During the filtration stage, if the amount of material is large, the material pumping pipeline can be directly connected to the hose, and the pumping device on the material pumping pipeline is used to directly pump the material; if the amount of material is small, the lower port of the material tank 6 can be directly connected to the hose. Of course, according to needs, other feasible connection methods can also be adopted, and this embodiment is only for illustrative purposes.

[0048] Furthermore, the discharge pipeline includes a cleaning pipeline 41 and a discharge pipeline 42, and a transfer pipe is also provided in the sterile cavity. The end of the output pipeline 3 is detachably connected to the first end of the transfer pipe through a first connector, and the second end of the transfer pipe is detachably connected to the inlet end of the cleaning pipeline 41 or the inlet end of the discharge pipeline 42 through a second connector.

[0049] The transfer pipe can be, for example, a U-shaped pipe, and the first connector and the second connector can be, for example, a clamp structure to dock the ports of the two pipelines. During water flushing and caustic washing, the end of the output pipeline 3 is communicated with the first end of the transfer pipe through the first connector, and the second end of the transfer pipe is communicated with the cleaning pipeline 41 through the second connector; during steam sterilization and sterile air purging and cooling, the end of the output pipeline 3 is communicated with the first end of the transfer pipe through the first connector, and the second end of the transfer pipe is communicated with the discharge pipeline 42 through the second connector; during the filtration stage, there is no connection between the end of the output pipeline 3 and the first end of the transfer pipe.

[0050] The above-mentioned steam filter generally includes a coarse steam filter 51 and a fine steam filter 53, which respectively perform coarse filtration (filtering large particle impurities) and fine filtration (filtering small impurities); the coarse steam filter 51, the steam pressure reducing valve 52 and the fine steam filter 53 are arranged in sequence from the inlet end to the outlet end of the steam sterilization pipeline 5.

[0051] Furthermore, a first steam trap 54 is also connected in a switchable manner in parallel between the coarse steam filter 51 and the steam pressure reducing valve 52 on the steam sterilization pipeline 5, a second steam trap 55 is connected in a switchable manner to the bottom end of the fine steam filter 53, and a third steam trap 421 is provided on the discharge pipeline 42 to discharge condensed water by using each steam trap.

[0052] In order to facilitate the control of the on / off states at various locations, a first switching valve 11 is provided at a position on the input pipeline 1 close to its opening end, a second switching valve 56 is provided at a position on the steam disinfection pipeline 5 close to its outlet end, a third switching valve 57 is further provided on the steam disinfection pipeline 5 between the pipeline where the first steam trap 54 is located and the steam pressure reducing valve 52, a fourth switching valve 58 is provided on the pipeline where the first steam trap 54 is located (the fourth switching valve 58 is arranged close to the steam disinfection pipeline 5), a fifth switching valve 59 is provided on the pipeline where the second steam trap 55 is located (the fifth switching valve 59 is arranged close to the steam disinfection pipeline 5), an exhaust pipe 21 is connected to the top of the microfiltration filter 2, and a sixth switching valve 22 is provided on the exhaust pipe 21.

[0053] In this embodiment, the discharge switching valve 31, the first switching valve 11, the second switching valve 56, the third switching valve 57, the fourth switching valve 58, the fifth switching valve 59, and the sixth switching valve 22 are all manual valves; for example, the first switching valve 11 to the sixth switching valve 22 can be ball valves.

[0054] All the valves in the entire device are manual valves and can be used without power supply. In this way, the entire device can be easily moved and is more flexible and convenient to use.

[0055] Furthermore, a first pressure gauge P1 is provided at a position on the steam disinfection pipeline 5 close to the inlet of the steam pressure reducing valve 52, a second pressure gauge P2 is provided at a position on the steam disinfection pipeline 5 close to its outlet end, a third pressure gauge P3 is provided at the top of the microfiltration filter 2, and a thermometer T1 is provided on the discharge pipeline 42 to facilitate the detection of the pressure or temperature at the corresponding positions.

[0056] In addition, the entire device should comply with the food hygiene design. The metal materials in contact with the product are made of 304 and 316 stainless steels, and the sealing materials are made of EPDM, silica gel, and Teflon, which greatly improves the hygiene and safety of the food.

[0057] To better understand the above microfiltration sterilization device, the operation process of the device is described in detail as follows:

[0058] The entire operation process includes a preparation stage before using the equipment and a filtration stage when using the equipment.

[0059] (1) Preparation stage:

[0060] Water flushing: The second switching valve 56 is closed. The end of the output pipeline 3 is connected to the cleaning pipeline 41 through the second connector so that the steam disinfection pipeline 5 is not connected to the input pipeline 1, and the end of the input pipeline 1 is connected to the cleaning pipeline 41. Water enters the microfiltration filter 2 through the first switching valve 11 and then is discharged through the discharge switching valve 31 via the cleaning pipeline 41. This can remove most of the impurities in the pipeline.

[0061] Alkaline washing: The alkaline solution enters the microfiltration filter 2 through the first switching valve 11, and then is discharged through the discharge switching valve 31 via the cleaning pipeline 41 or flows back to the alkaline solution storage device for circulating cleaning. All organic impurities in the pipeline can be removed.

[0062] Steam disinfection: The second switching valve 56 is opened, and the end of the output pipeline 3 is connected to the discharge pipeline 42 through the second connector, so that the steam disinfection pipeline 5 is communicated with the input pipeline 1, and the end of the input pipeline 1 is communicated with the discharge pipeline 42; The steam is roughly filtered through the coarse steam filter 51, passes through the third switching valve 57 and then is adjusted to the required steam pressure through the steam pressure reducing valve 52, is finely filtered through the fine steam filter 53 to generate impurity-free steam, is sterilized through the second switching valve 56 and then through the microfiltration filter 2, and the steam is discharged through the discharge switching valve 31 and the third steam trap 421. The pipeline can be made aseptic.

[0063] Cooling: After steam sterilization, the temperature of the equipment is high, so cooling is required. The sterile compressed air pipeline 7 is connected to the input pipeline 1. After the compressed air is filtered through the air filter and adjusted to the required pressure through the compressed air pressure reducing valve 74, sterile air is generated. The sterile air purges the input pipeline 1 and the microfiltration filter 2. The pressure is 0.2 MPA, and purging for 30 minutes can reduce the temperature of the microfiltration sterilization device from 120 °C to 40 °C. Compared with other microfiltration sterilization equipment on the market, the cooling time is faster.

[0064] (2) Filtration stage:

[0065] If the amount of the material to be filtered is large, the material tank 6 is not used, and the hose is directly connected to the material pumping pipeline. The second switching valve 56 is closed, the end of the input pipeline 1 is not connected to the adapter, and the discharge switching valve 31 is opened. The material enters the microfiltration filter 2 through the first switching valve 11 to generate sterile material, and then is filled into the filling container through the discharge switching valve 31 in the sterile room 8.

[0066] If the amount of the material to be filtered is small, the upper and lower ends of the material tank 6 are respectively connected to the sterile compressed air pipeline 7 and the hose. The second switching valve 56 is closed, the end of the input pipeline 1 is not connected to the adapter, and the discharge switching valve 31 is opened. By the action of the sterile air generated by the sterile compressed air pipeline 7, the material in the material tank 6 can be pushed into the microfiltration filter 2, and then filled into the filling container through the discharge switching valve 31.

[0067] In summary, the microfiltration sterilization device in this embodiment is a simple microfiltration sterilization device, which can simply perform microfiltration sterilization on liquid materials, can select a wider range of usage amounts, is more simply prepared, and has a higher harvest rate; it can be applied to liquid microfiltration sterilization to meet normal experiments or production; the sterilization rate of liquid materials basically reaches 100%.

[0068] The above are only the schematic specific embodiments of the present invention and are not intended to limit the scope of the present invention. Any equivalent changes and modifications made by those skilled in the art without departing from the concept and principles of the present invention shall fall within the scope of protection of the present invention.

Claims

1. A microfiltration sterilization device, characterized in that, Comprising: A microfiltration filter, an inlet end and an outlet end of which are respectively connected with an input pipeline and an output pipeline. A discharge switch valve is arranged at a position near the end of the output pipeline, and the end of the output pipeline is detachably connected with a discharge pipeline; A steam disinfection pipeline, an outlet end of which is bypassed on the input pipeline in a switchable manner, and a steam filter and a steam pressure reducing valve are arranged on the steam disinfection pipeline; A material tank, a lower port of which is connected with the input pipeline in a switchable manner; A sterile compressed air pipeline, which is connected with the input pipeline in a switchable manner, or is connected with an upper port of the material tank in a switchable manner; and an air filter and a compressed air pressure reducing valve are arranged on the sterile compressed air pipeline; A sterile chamber, an aseptic cavity is formed inside it, the end of the output pipeline, the discharge switch valve and the inlet end of the discharge pipeline are all located in the aseptic cavity; a placement area is arranged in the aseptic cavity and opposite to the end of the output pipeline for placing filling containers.

2. The microfiltration sterilization device according to claim 1, wherein The inlet end and the outlet end of the microfiltration filter are respectively detachably connected with the input pipeline and the output pipeline.

3. The microfiltration sterilization device according to claim 1, wherein The discharge switch valve is a diaphragm valve, an operation port is opened on the side wall of the sterile chamber, and an operation glove is installed at the operation port.

4. The microfiltration sterilization device according to claim 1, wherein The air filter includes a coarse filter, an oil and water removal filter and a sterile filter, and the coarse filter, the oil and water removal filter, the sterile filter and the compressed air pressure reducing valve are arranged in sequence from the inlet end to the outlet end of the sterile compressed air pipeline.

5. The microfiltration sterilization device according to claim 1, wherein A hose is connected to the inlet end of the input pipeline, and the hose can be connected with the lower port of the material tank, the outlet end of the sterile compressed air pipeline, a material pumping pipeline, a water pumping pipeline or an alkali liquid pumping pipeline.

6. The microfiltration sterilization device according to claim 1, wherein The discharge pipeline includes a cleaning pipeline and a discharge pipeline, a transfer pipe is further arranged in the sterile chamber, the end of the output pipeline is detachably connected with the first end of the transfer pipe through a first connector, and the second end of the transfer pipe is detachably connected with the inlet end of the cleaning pipeline or the inlet end of the discharge pipeline through a second connector.

7. The microfiltration sterilization device according to claim 6, wherein The steam filter includes a coarse steam filter and a fine steam filter, and the coarse steam filter, the steam pressure reducing valve and the fine steam filter are arranged in sequence from the inlet end to the outlet end of the steam disinfection pipeline.

8. The microfiltration sterilization device according to claim 7, wherein A first steam trap is also bypassed on the steam disinfection pipeline and between the coarse steam filter and the steam pressure reducing valve in a switchable manner, a second steam trap is connected to the bottom end of the fine steam filter in a switchable manner, and a third steam trap is arranged on the discharge pipeline.

9. The microfiltration sterilization device according to claim 8, wherein A first switching valve is provided at a position on the input pipeline close to its opening end, a second switching valve is provided at a position on the steam disinfection pipeline close to its outlet end, a third switching valve is further provided on the steam disinfection pipeline between the pipeline where the first steam trap is located and the steam pressure reducing valve, a fourth switching valve is provided on the pipeline where the first steam trap is located, a fifth switching valve is provided on the pipeline where the second steam trap is located, an exhaust pipe is connected to the top of the microfiltration filter, and a sixth switching valve is provided on the exhaust pipe.

10. The microfiltration and sterilization device according to claim 9, wherein the discharge switching valve, the first switching valve, the second switching valve, the third switching valve, the fourth switching valve, the fifth switching valve and the sixth switching valve are all manual valves; a first pressure gauge is provided at a position on the steam disinfection pipeline close to the inlet of the steam pressure reducing valve, a second pressure gauge is provided at a position on the steam disinfection pipeline close to its outlet end, a third pressure gauge is provided at the top of the microfiltration filter, and a thermometer is provided on the discharge pipeline.

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