Filter for edible fungi fermentation tank

Abstract

This utility model discloses a filter for edible fungi fermentation tanks, relating to the field of fermentation tank filter technology. It includes a housing and an end cap fixed to the top of the housing. The utility model incorporates a water storage base inside the housing. When the fermentation tank is undergoing deep fermentation and emitting exhaust gas, the exhaust gas enters the water body inside the storage base through a gas guide pipe, achieving water washing of the exhaust gas. This water washing dissolves hydrophilic particles in the exhaust gas, such as sugars, salts, and some water-soluble metabolites, while capturing hydrophobic particles such as bacteria and lipids. Through wetting and sedimentation, the solid load entering the PTFE filter element is directly reduced, delaying filter element clogging. Furthermore, a guide groove is provided on the sealing seat, enabling high-speed rotation during gas transport, similar to a gas-liquid separator, removing free liquid water, reducing gas humidity, preventing liquid water from directly impacting the PTFE filter element, maintaining the filter element's hydrophobicity, and preventing the "water lock effect" from causing liquid water to clog the micropores.

Description

Technical Field

[0001] This utility model relates to the field of fermenter filter technology, specifically to a filter for edible fungi fermentation tanks. Background Technology

[0002] Edible fungi fermentation tanks, also known as spawn fermentation tanks, are equipment used for the production of liquid spawn and mycelial fermentation culture of food fungi. In the deep aeration fermentation process, efficient filtration of exhaust gas is the core link to maintain a sterile environment and biosafety. Currently, the industry generally uses polytetrafluoroethylene (PTFE) filter elements to directly filter exhaust gas, but there are the following serious defects: First, frequent clogging: Fermentation exhaust gas contains high-humidity aerosols, fungal fragments, viscous metabolites, and defoamer droplets, etc. These substances accumulate rapidly on the surface of traditional filter elements, causing clogging and requiring frequent shutdowns to replace the filter elements. Second, water lock effect: High-temperature exhaust gas encounters condensed liquid water that wets the micropores of the hydrophobic PTFE filter membrane, destroying the gas channels and causing a decrease in aeration. Utility Model Content

[0003] The purpose of this invention is to provide a filter for edible fungi fermentation tanks to solve the problems mentioned in the background art.

[0004] To solve the above-mentioned technical problems, the present invention provides the following technical solution: including a housing and an end cap fixed to the top of the housing, wherein a mounting base is fixed to the bottom of the end cap, and a filter element is assembled inside the mounting base; A water storage base is fixedly connected inside the shell. The surface of the water storage base is provided with multiple air guide pipes. One end of each air guide pipe passes through the interior of the water storage base and is submerged in water. The top of the water storage base has multiple circumferentially equidistant vent holes. A sealing seat is fixedly connected to the central opening of the water storage base. The surface of the sealing seat has multiple equidistantly arranged guide grooves. A vent pipe is fixedly sleeved at the center of the sealing seat.

[0005] In a further embodiment, a liquid filling pipe and a liquid draining pipe are fitted on one side of the housing. One end of the liquid filling pipe and the liquid draining pipe extends into the interior of the housing and communicates with the water storage base. Valves are installed on the surface of both the liquid filling pipe and the liquid draining pipe.

[0006] In a further embodiment, a water receiving tray is fixedly sleeved at the central opening of the water storage base, and a waste discharge pipe is connected to the bottom of the water receiving tray. One end of the waste discharge pipe extends to the outside of the shell and is equipped with a valve.

[0007] In a further embodiment, the top of the housing is connected to a gas supply pipe, one end of which extends into the interior of the housing and is connected to the mounting base.

[0008] In a further embodiment, a pressure gauge is mounted on the surface of the gas pipeline, and a valve is installed on the surface of the gas pipeline.

[0009] In a further embodiment, the filter element is made of polytetrafluoroethylene.

[0010] Compared with the prior art, the beneficial effects of this utility model are: This invention features a water storage base inside the casing. When the fermenter is undergoing deep fermentation and emitting exhaust gas, the exhaust gas enters the water body inside the storage base through the gas guide pipe, thus washing the exhaust gas. This water washing dissolves hydrophilic particles in the exhaust gas, such as sugars, salts, and some water-soluble metabolites, while capturing hydrophobic particles such as bacteria and lipids. Through wetting and sedimentation, the solid load entering the PTFE filter element is directly reduced, delaying filter element clogging. Furthermore, the sealing seat has a guide groove that enables high-speed rotation during gas transport, similar to a gas-liquid separator, removing free liquid water, reducing gas humidity, preventing liquid water from directly impacting the PTFE filter element, maintaining the filter element's hydrophobicity, and preventing the "water lock effect" from causing liquid water to clog the micropores. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model; Figure 2 This is a cross-sectional view of the overall structure of an embodiment of the present utility model; Figure 3 This is a partial structural cross-sectional view of an embodiment of the present utility model; Figure 4 This is a cross-sectional view of the mounting base and filter element according to an embodiment of the present utility model.

[0012] In the diagram: 1. Shell; 2. End cap; 3. Mounting base; 4. Filter element; 5. Water reservoir; 6. Air duct; 7. Vent hole; 8. Sealing seat; 9. Guide groove; 10. Vent pipe; 11. Liquid filling pipe; 12. Liquid drain pipe; 13. Water receiving tray; 14. Waste drain pipe; 15. Gas supply pipe; 16. Pressure gauge. Detailed Implementation

[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0014] This embodiment discloses a filter for an edible fungus fermentation tank, including a housing 1 and an end cap 2 fixed to the top of the housing 1. A mounting base 3 is fixed to the bottom of the end cap 2, and a filter element 4 is assembled inside the mounting base 3. Figure 1 , Figure 2 and Figure 4 As shown in this application, the bottom of the shell 1 is designed with a flange for connecting the exhaust port of the fermenter, so that the shell 1 and the fermenter can be installed together. The end cap 2 is detachably connected to the top of the shell 1, preferably by bolts. The mounting base 3 is fixed to the bottom of the end cap 2, preferably by bolts, but it can also be glued. The filter element 4 is installed inside the mounting base 3. The filter element 4 is a hydrophobic PTFE membrane, also known as a polytetrafluoroethylene membrane, with a pore size preferably of 0.2μm or 0.1μm. It is a cylindrical pleated membrane used for filtering exhaust gas.

[0015] Preferably, the top of the housing 1 is connected to a gas supply pipe 15, one end of which extends into the interior of the housing 1 and connects to the mounting base 3. A pressure gauge 16 is mounted on the surface of the gas supply pipe 15, and a valve is also mounted on the surface of the gas supply pipe 15. Figure 1 and Figure 2 As shown in this application, the gas transmission pipe 15 is used for the exhaust of exhaust gas. One end of the gas transmission pipe 15 is connected to the mounting base 3. When the exhaust gas passes through the filter element 4 from the outside to the inside, it can be discharged through the gas transmission pipe 15. The pressure gauge 16 is installed on the surface of the gas transmission pipe 15, and a valve is installed on the surface of the gas transmission pipe 15. The operator can open the passage of the gas transmission pipe 15 through the valve according to the pressure value of the pressure gauge 16 to discharge the exhaust gas or close the discharge.

[0016] More specifically, a water storage base 5 is fixedly connected inside the shell 1. Multiple air guide pipes 6 are provided on the surface of the water storage base 5, with one end of each pipe penetrating into the interior of the water storage base 5 and submerged in water. Multiple circumferentially equidistant vent holes 7 are opened on the top of the water storage base 5. A sealing seat 8 is fixedly connected to the central opening of the water storage base 5. Multiple equidistant guide grooves 9 are opened on the surface of the sealing seat 8. A vent pipe 10 is fixedly sleeved at the center of the sealing seat 8. Figure 2 and Figure 4As shown in this application, the water storage base 5 is located inside the housing 1. The water storage base 5 is used to store liquid for washing the exhaust gas. The liquid here can be selected according to the composition of the exhaust gas and is not limited to water. The air guide pipe 6 is installed on the surface of the water storage base 5, and the air guide pipe 6 is a U-shaped pipe, one end of which penetrates into the interior of the water storage base 5. When exhaust gas needs to be discharged, the exhaust gas enters the interior of the housing 1, passes through the air guide pipe 6, and enters the interior of the water storage base 5, mixing the exhaust gas with the liquid inside the water storage base 5. Impurities dissolve in the water, and the gas is discharged through the exhaust port 7. The sealing seat 8 is installed at the center of the water storage base 5. The two can be connected by adhesive, sliding snap, or threaded connection. Its top disc and the housing 1 are slidably connected. A sealing ring can be installed between the top disc and the housing 1 to improve the sealing performance between the sealing seat 8 and the housing 1. The guide grooves 9 are opened on the sealing seat 8, and there are multiple of them, which are arranged circumferentially at equal intervals. When the gas is discharged through the exhaust hole 7, it is blocked by the disc of the sealing seat 8. The gas moves along the guide grooves 9 and forms a high-speed rotation. Like a gas-liquid separator, it can throw the liquid in the gas onto the inner wall of the central opening of the water storage seat 5. The vent pipe 10 is located at the center of the sealing seat 8, and one end of it extends to the top of the sealing seat 8. When the exhaust gas seat rotates to the bottom of the sealing seat 8, it can be transported to the top of the sealing seat 8 through the vent pipe 10 and filtered by the filter element 4 to achieve wetting sedimentation and gas-liquid separation.

[0017] Preferably, a liquid inlet pipe 11 and a liquid outlet pipe 12 are fitted on one side of the housing 1. One end of the liquid inlet pipe 11 and the liquid outlet pipe 12 penetrates into the interior of the housing 1 and communicates with the water storage base 5. Valves are installed on the surfaces of both the liquid inlet pipe 11 and the liquid outlet pipe 12. A water receiving tray 13 is fixedly fitted into the center opening of the water storage base 5. A waste discharge pipe 14 is connected to the bottom of the water receiving tray 13. One end of the waste discharge pipe 14 penetrates into the exterior of the housing 1 and is fitted with a valve. Figure 1 , Figure 2 and Figure 3 As shown in this application, the liquid filling pipe 11 and the liquid draining pipe 12 are installed on one side of the housing 1. One end of the liquid filling pipe 11 and the liquid draining pipe 12 penetrates into the interior of the housing 1 and is connected to the water storage base 5. The liquid filling pipe 11 is located at the top of the water storage base 5 and is used to fill the water storage base 5 with liquid. The liquid draining pipe 12 is located at the bottom of the water storage base 5 and is used to drain the sewage inside the water storage base 5. Valves are installed on the surface of both the liquid filling pipe 11 and the liquid draining pipe 12, which are used to open and close the passage of the liquid filling pipe 11 and the liquid draining pipe 12. The water receiving tray 13 is located at the center hole of the water storage base 5 and is located directly below the sealing seat 8. It can receive the separated liquid. The waste discharge pipe 14 is installed at the bottom of the water receiving tray 13 to facilitate the discharge of the separated liquid through the waste discharge pipe 14.

[0018] It should be noted that parts have a lifespan and can be replaced during regular maintenance when they no longer meet performance requirements. Deterioration in performance due to prolonged use of parts is not a design defect of this application.

[0019] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An edible mushroom fermenter filter, comprising a shell (1) and an end cover (2) fixed on the top of the shell (1), characterized in that: The bottom of the end cap (2) is fixedly connected to a mounting base (3), and a filter element (4) is assembled inside the mounting base (3). A water storage base (5) is fixedly connected inside the housing (1). The surface of the water storage base (5) is provided with multiple air guide pipes (6). One end of the air guide pipe (6) penetrates into the interior of the water storage base (5) and is submerged in water. The top of the water storage base (5) is provided with multiple circumferentially equidistant vent holes (7). A sealing seat (8) is fixedly connected to the central opening of the water storage base (5). The surface of the sealing seat (8) is provided with multiple equidistantly arranged guide grooves (9). A vent pipe (10) is fixedly sleeved at the center of the sealing seat (8).

2. The filter for a fermentation tank for edible mushrooms according to claim 1, characterized in that: One side of the housing (1) is equipped with a liquid filling pipe (11) and a liquid draining pipe (12). One end of the liquid filling pipe (11) and the liquid draining pipe (12) extends into the interior of the housing (1) and communicates with the water storage base (5). Valves are installed on the surface of the liquid filling pipe (11) and the liquid draining pipe (12).

3. The filter for a fermentation tank for edible mushrooms according to claim 1, characterized in that: A water receiving tray (13) is fixedly sleeved at the center opening of the water storage base (5). The bottom of the water receiving tray (13) is connected to a waste discharge pipe (14), and one end of the waste discharge pipe (14) extends through to the outside of the shell (1) and is equipped with a valve.

4. The filter for a fermentation tank for edible mushrooms according to claim 1, characterized in that: The top of the housing (1) is connected to an air supply pipe (15), one end of which extends into the interior of the housing (1) and is connected to the mounting base (3).

5. The filter for a fermentation tank for edible mushrooms according to claim 4, characterized in that: The gas pipe (15) is fitted with a pressure gauge (16) and a valve is installed on the surface of the gas pipe (15).

6. The filter for an edible fungus fermentation tank according to claim 1, characterized in that: The filter element (4) is made of polytetrafluoroethylene.

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