Constant-temperature anaerobic pickle fermentation device

Abstract

The present application belongs to the technical field of food fermentation processing, and specifically relates to a constant-temperature anaerobic pickled vegetable fermentation device, which comprises a fermentation tank body module, a constant-temperature control module, a closed anaerobic sealing module, an anti-blocking pressure stabilizing exhaust module, an intelligent monitoring module, a safety protection and cleaning module and a control module which are coupled and assembled with each other. The present application is provided with a full-coated static interlayer constant-temperature control structure, a double-layer gradient negative pressure anti-backflow sealing structure and a multi-point distributed multi-stage anti-blocking pressure stabilizing exhaust structure, and is matched with a multi-parameter online monitoring and intelligent closed-loop control system, so that the problems of uneven temperature control, easy blockage of exhaust, easy failure of sealing and inability to monitor the fermentation state in real time of traditional pickled vegetable fermentation equipment are solved. The present application realizes high-precision global constant temperature in the tank, a stable micro-positive pressure anaerobic environment, automatic pressure relief without blockage, intelligent monitoring and early warning of the whole working condition, effectively avoids bacterial contamination and deterioration of materials, reduces production loss, improves the fermentation quality and batch uniformity of pickled vegetables and is suitable for industrialized continuous production working conditions.

Description

Technical Field

[0001] This invention belongs to the field of food fermentation and processing technology, specifically referring to a constant temperature anaerobic kimchi fermentation device. Background Technology

[0002] Anaerobic kimchi is a fermented vegetable product made using a strict anaerobic fermentation process. Its core principle is to seal the vegetables in an oxygen-free environment, allowing the lactic acid bacteria naturally attached to the surface to proliferate and metabolize in this anaerobic environment. This breaks down carbohydrates into lactic acid, gradually lowering the pH level and inhibiting the growth of spoilage and pathogenic bacteria, thus achieving long-term preservation and flavor transformation. The process involves using fresh vegetables as raw materials, along with salt, spices, and cooled boiled water, placed in a sealed container, ensuring the vegetables are completely submerged in the brine to create a stable anaerobic environment. In the early stages of fermentation, facultative bacteria consume residual oxygen, followed by lactic acid bacteria taking over, continuously producing acid and enhancing flavor. It is ready to eat in 3 to 7 days. Compared to aerobic pickling, anaerobic fermented kimchi has lower nitrite content, better crispness, and is rich in active lactic acid bacteria and vitamins, helping to regulate the intestines and promote digestion. Representative varieties include Sichuan pickled vegetables, Northeastern sauerkraut, and Korean kimchi, which are tangy, crisp, and refreshing, and are widely consumed traditional fermented foods worldwide.

[0003] Traditional small-scale kimchi fermentation equipment is only suitable for small-scale production in homes and workshops, and cannot meet the needs of industrialized, large-scale mass production. Existing industrial-grade closed anaerobic kimchi fermentation tanks have many structural defects in mass production applications, severely restricting standardized industrial kimchi production: First, there is a high risk of pressure imbalance in the closed system. During large-scale fermentation, lactic acid bacteria continuously produce large amounts of carbon dioxide through metabolism. Traditional single exhaust valves are easily clogged by vegetable leaves and viscous brine impurities, causing excessive pressure buildup inside the tank, leading to tank deformation and gasket breakage. External oxygen intrusion directly causes the entire batch of kimchi to mold and spoil. Frequent manual pressure relief also significantly increases the probability of contamination by other microorganisms. Second, temperature control and mass transfer are uneven. Large fermentation tanks have large volumes and large material accumulation, making them prone to temperature differences and acidity stratification. The bottom layer may be too acidic, while the upper layer may not ferment completely. Dead corners in the material accumulation area are prone to localized oxygen absorption and fermentation, resulting in inconsistent crispness and acidity in the finished product, affecting batch consistency. Thirdly, the equipment suffers from severe corrosion and high maintenance costs. The fermentation brine for kimchi is a high-salt, highly acidic medium; ordinary carbon steel tanks are prone to corrosion and perforation, while enamel tanks are easily damaged by impacts, delamination, and rust. Conventional silicone seals are susceptible to aging and failure due to long-term lactic acid corrosion, requiring frequent shutdowns to replace consumables, resulting in poor production continuity and high maintenance costs. Fourthly, anaerobic monitoring is lacking. Traditional industrial tanks generally lack online oxygen and pH monitoring structures, relying solely on sampling after opening the lid to determine the fermentation status. Opening the lid directly disrupts the sealed anaerobic environment, introducing unwanted bacteria, making real-time monitoring of the anaerobic conditions impossible and resulting in extremely poor process controllability. Fifthly, discharging and removing residue is inconvenient. Traditional flat-bottomed tanks easily accumulate vegetable scraps, leading to the long-term growth of odor-causing bacteria. The bottom drain is prone to clogging, requiring the complete emptying of the precious fermentation brine for cleaning, resulting in significant raw material loss and high production costs. In summary, existing fermentation equipment has significant industrial adaptability defects, failing to achieve high-quality, stable, and low-cost large-scale kimchi fermentation production. Summary of the Invention

[0004] To address the technical shortcomings of existing industrial fermentation tanks, such as easy blockage of pressure venting, pressure imbalance leading to seal failure, and deterioration of the entire batch of materials, this invention adopts a multi-stage anti-blockage, pressure-stabilizing, and adaptive venting method. It incorporates a pre-filter anti-blockage structure, a multi-point distributed pressure relief structure, and a pressure closed-loop control component. This achieves the technical effect of carbon dioxide non-blockage and automatic balanced pressure relief during large-scale fermentation, solving the technical problems of pressure accumulation, tank deformation, seal failure, and oxygen intrusion and contamination in industrial mass production.

[0005] To address the problems of poor corrosion resistance, easy aging of seals, cumbersome maintenance, and high production costs in traditional industrial fermenters, this invention adopts a fully corrosion-resistant material adaptation and composite sealing structure optimization approach. It features a food-grade thickened 316L stainless steel tank body and lactic acid-resistant modified sealing components, combined with a modular, detachable assembly structure. This achieves the technical effects of strong acid and high salt corrosion resistance, long-term stable sealing, and rapid disassembly and maintenance. To solve the problems of the inability to monitor anaerobic conditions online and the risk of contamination during random inspections after opening the lid in traditional industrial tanks, this invention employs a multi-parameter online real-time monitoring method. It incorporates four-dimensional sensing components for oxygen content, pressure, temperature, and pH, along with an intelligent early warning control module. This enables fully enclosed, non-contact monitoring of the fermentation state, accurately determining the anaerobic environment and fermentation process without opening the lid, completely eliminating the risk of contamination from opening the lid.

[0006] The technical solution adopted in this invention is as follows: A constant-temperature anaerobic kimchi fermentation device includes a fermentation tank module, a constant-temperature control module, a sealed anaerobic sealing module, an anti-blocking pressure stabilizing exhaust module, an intelligent monitoring module, a safety cleaning module, and a control module. The fermentation tank module is installed on a frame laid on site. The constant-temperature control module is integrally embedded and fully enclosed within the interlayer of the fermentation tank module, forming an integrated heat exchange and insulation connection structure with the fermentation tank module. The sealed anaerobic sealing module is integrally snapped and pressed tightly to the top port of the fermentation tank module, achieving a full-end sealed fit at the top of the tank. The anti-blocking pressure stabilizing exhaust module... The pressure-stabilizing exhaust module is sealed and embedded at the exhaust port on the top of the fermentation tank module, directly communicating with the airflow in the fermentation chamber inside the tank; the intelligent monitoring module is sealed and embedded in the side wall and the top preset monitoring port of the fermentation tank module, with the sensing end extending into the tank cavity to collect parameters; the safety cleaning module is respectively assembled and connected to the outer wall, bottom drain end and upper cleaning port of the fermentation tank module; a control panel is installed on the outside of the fermentation tank module, and the control module is electrically connected and assembled inside the control panel, forming a signal acquisition and control output connection with all electronic control actuators and sensing components.

[0007] Furthermore, the fermentation tank module includes a double-layered hollow tank, a detachable sealing top cover, a rounded bottom without dead angles, and a sealing interface assembly. The detachable sealing top cover is snap-locked to the top of the double-layered hollow tank, enabling quick opening and closing and airtight assembly. The rounded bottom without dead angles is integrally formed and connected to the bottom of the double-layered hollow tank, communicating with the internal cavity of the double-layered hollow tank. The sealing interface assembly is installed through and sealed at a pre-set opening on the side wall of the double-layered hollow tank, respectively sealingly connecting to the pipelines of the constant temperature control module, the sensors of the intelligent monitoring module, the cleaning pipelines of the safety cleaning module, and the sewage discharge pipelines, thereby achieving a sealed assembly connection between each functional module and the interior of the tank.

[0008] The double-layer hollow tank includes a stainless steel inner cavity, an insulated outer shell, and a polyurethane insulation interlayer. The stainless steel inner cavity is preferably made of food-grade 316L stainless steel. The polyurethane insulation interlayer is filled with high-density polyurethane insulation material, which effectively isolates the heat exchange between the inside and outside and reduces the energy consumption for temperature control.

[0009] Furthermore, the constant temperature control module is integrally embedded within the interlayer space of the fermentation tank module, employing an integrated built-in installation structure with no external exposed heat exchange pipes. It completely encloses and covers the entire sidewall and the curved bottom area of ​​the double-layered hollow tank, achieving comprehensive heat exchange coverage of the tank wall and bottom, eliminating temperature control blind spots and dead zones. The constant temperature control module includes a full-area water circulation heat exchange interlayer, a variable frequency micro water circulation pump, a PTC intelligent heating component, a high-precision semiconductor refrigeration component, a multi-point array temperature sensor, and a constant temperature and pressure stabilizing pipeline assembly. The full-area water circulation heat exchange interlayer is nested within the sidewall of the double-layered hollow tank. The variable frequency micro water circulation pump is installed on the outside of the double-layered hollow tank. The constant temperature and pressure stabilizing pipeline assembly connects the interlayer of the double-layered hollow tank and the full-area water circulation heat exchange interlayer. The PTC intelligent heating component and the high-precision semiconductor refrigeration component are installed within the full-area water circulation heat exchange interlayer. The constant temperature and pressure stabilizing pipeline assembly is connected to the PTC intelligent heating component and the high-precision semiconductor refrigeration component at both ends of the pipeline assembly. The constant temperature and pressure stabilizing pipeline assembly, the PTC intelligent heating component, the variable frequency micro water circulation pump and the high-precision semiconductor refrigeration component form a closed-loop heat exchange connection structure. The multi-point array temperature sensor is sealed and embedded in the inner wall of the double-layer hollow tank. The sensing end is in contact with the fermentation medium inside the tank and the signal end is electrically connected to the control module. The outer side of the full-area water circulation heat exchange jacket is wrapped with a multi-layer heat storage and insulation structure, which is tightly fitted and fixed to the inner side of the double-layer hollow tank shell. This design addresses the six major technical shortcomings of existing industrial kimchi fermentation tanks, such as external circulation disturbance fermentation, large temperature difference between the upper and lower parts of the tank, single-point temperature measurement distortion, temperature control lag, uneven heat exchange and high energy consumption. It achieves constant temperature control that is disturbance-free, uniformly heated throughout the entire area, fast response, high precision and adaptable to gradient processes.

[0010] As a further preferred embodiment of the present invention, the full-area water circulation heat exchange jacket is tightly fitted to the tank body, without extracting the fermentation liquid inside the tank or disturbing the material accumulation state throughout the process. This completely solves the problems of damaged crispness, material tumbling and stratification, and turbidity and deterioration caused by traditional liquid circulation heat exchange, thus preserving the crispness and flavor of traditional kimchi from the perspective of temperature control. At the same time, it abandons the traditional single-layer sidewall heat exchange structure of the tank body and adopts an integrated full-enclosed jacket heat exchange structure for the sidewall and bottom of the tank. Combined with the independent temperature control logic of the upper and lower zones, the heat exchange chamber is divided into an upper gas phase heat exchange section and a lower liquid phase heat exchange section along the height of the tank body. This allows for differentiated and precise temperature control of the upper gas phase zone and the lower liquid phase zone of the large tank, actively offsetting the natural convection temperature difference gradient of the large tank body, and completely solving the mass production problems of insufficient fermentation in the upper layer, excessive acidity in the bottom layer, and inconsistent flavor in batches.

[0011] As a further preferred embodiment of the present invention, the sealed anaerobic sealing module includes a double-layer gradient sealing component, a quick-locking component, a negative pressure anti-backflow stabilizing structure, and a full-port sealing plug. The double-layer gradient sealing component is integrally nested and installed on the lower end face of the detachable sealing top cover, and is pressed tightly and sealed against the top end face of the double-layer hollow tank. The quick-locking component is circumferentially and uniformly fixedly installed on the outer side of the top of the detachable sealing top cover, and the movable end of the quick-locking component presses against the edge of the detachable sealing top cover to form a multi-point mechanical locking connection structure. The full-port sealing plug is sealed and fitted onto the internal interface of the sealing interface component to achieve a sealed connection at the interface. The negative pressure anti-backflow stabilizing structure is embedded in the middle section of the exhaust passage at the top of the detachable sealing top cover, connected upstream to the exhaust pipe at the top of the detachable sealing top cover, and connected downstream to the anti-blocking and stabilizing exhaust module, realizing a series connection of unidirectional airflow and negative pressure locking, which is specifically adapted to high-pressure, long-term continuous anaerobic production in large industrial fermenters. This system completely solves the industry defects of traditional equipment gaskets, such as pressure bursting, aging leakage, negative pressure oxygen backflow, and interface leakage. The dual-layer gradient sealing assembly includes an outer compression silicone ring and an inner fluororubber composite sealing gasket, forming an outer compression and inner corrosion-resistant double-layer sealing barrier. The outer silicone ring is responsible for high-strength planar compression sealing and withstands the micro-positive pressure load of the tank. The inner fluororubber sealing gasket directly contacts the acidic high-salt mist and brine vapor inside the tank, and has the characteristics of lactic acid corrosion resistance, aging resistance, and deformation resistance, solving the problems of ordinary equipment gaskets. The problem of silicone rubber hardening, cracking, failure, and air leakage due to long-term immersion in corrosive materials is addressed. The quick-locking assembly adopts a multi-point uniform pressing structure. Each assembly consists of a screw and a nut rotatably connected to a detachable sealing top cover. The nut and screw are threaded together. Compared with the defects of traditional buckles, such as uneven force distribution and local gap leakage, this assembly can achieve uniform force distribution around the top cover and a flat, edge-free fit, greatly improving the pressure-bearing and sealing capacity of the tank. It can stably withstand the micro-positive pressure conditions of industrial fermentation and prevent gasket detachment and air ingress under high pressure.

[0012] The intelligent monitoring module includes an oxygen content sensor, a pH sensor, a pressure sensor, and an audible and visual alarm unit. The oxygen content sensor, pH sensor, and pressure sensor are each sealed and embedded one-to-one in the pre-set monitoring interface of the fermentation tank module. The probe end of each sensor extends into the double-layered hollow tank and directly contacts the fermentation environment. The signal output end is electrically connected to the signal acquisition port of the control module via a shielded wire, enabling real-time acquisition and transmission of multiple parameters within the tank. The audible and visual alarm unit is fixedly installed above the equipment control panel. Its signal input end is electrically connected to the alarm output port of the control module, forming an abnormal signal trigger linkage connection with the control module for early warning of abnormal operating conditions.

[0013] As a further preferred embodiment of the present invention, the negative pressure anti-backflow stabilizing structure includes a gravity sealing valve core, an elastic reset assembly, an anti-impurity sealing valve seat, and a vacuum negative pressure blocking cavity. The vacuum negative pressure blocking cavity consists of upper and lower chambers, which are integrally embedded inside a detachable sealing top cover. The upper chamber is connected to the exhaust pipe at the top of the detachable sealing top cover. The anti-impurity sealing valve seat connects the upper and lower chambers of the vacuum negative pressure blocking cavity. The gravity sealing valve core is slidably disposed within the anti-impurity sealing valve seat. The upper end of the elastic reset assembly is connected to the top of the anti-impurity sealing valve seat, and the lower end of the elastic reset assembly is fixedly connected to the top surface of the gravity sealing valve core. Compared to traditional single-direction check valve structures, this system features triple functions: positive pressure relief, negative pressure locking, and constant pressure stabilization. It addresses the industry pain point of industrial fermenters experiencing cooling and contraction during the later stages of fermentation, leading to a vacuum and negative pressure inside the tank, which causes outside air to be drawn back into the tank. During the gas production stage of fermentation, the tank is under a slight positive pressure. The gas pressure opens the gravity-sealed valve core, automatically and normally releasing fermented carbon dioxide without affecting the regular pressure relief and exhaust functions. When fermentation stops, the temperature inside the tank drops, and negative pressure is generated due to gas contraction, the external atmospheric pressure presses the gravity-sealed valve core in conjunction with the elastic reset component to quickly lock the exhaust passage, achieving absolute sealing and preventing the backflow of oxygen-containing air, bacteria, and water vapor into the tank.

[0014] Furthermore, the anti-clogging and pressure-stabilizing exhaust module is integrally sealed and connected in series to the bottom of the detachable sealed top cover. Upstream, it is controllably connected to the external atmosphere via a negative pressure anti-backflow stabilizing structure, and downstream, it is connected to the double-layered hollow tank. The anti-clogging and pressure-stabilizing exhaust module includes a multi-stage filtration anti-clogging component and a pressure-sensing adaptive pressure relief valve assembly. The multi-stage filtration anti-clogging component includes a large-particle vegetable leaf interception filter and a fine brine impurity filter layer. The large-particle vegetable leaf interception filter and the fine brine impurity filter layer are assembled in series from bottom to top, forming a two-stage progressive filtration connection structure, and are installed at the bottom of the detachable sealed top cover. The pressure-sensing adaptive pressure relief valve assembly is connected in series to the bottom of the detachable sealed top cover, connecting the lower chamber of the vacuum negative pressure blocking chamber and the fine brine impurity filter layer. The valve body control end is electrically connected to a control module, which can receive pressure signals to achieve adaptive opening. Adjustment; This module specifically addresses the fatal flaw of traditional kimchi fermentation tanks, where single-hole exhaust is easily clogged by vegetable leaves, fibers, and viscous brine, leading to pressure buildup, seal failure, and batch contamination. It adopts a dual-stage anti-clogging structure with coarse and fine filtration to prevent exhaust channel blockage at the source. It abandons the traditional single-point centralized exhaust structure and adopts a multi-point distributed pressure relief layout on the top of the tank to achieve uniform gas collection and balanced pressure relief throughout the entire area, avoiding the instantaneous high-pressure impact on the sealing structure caused by localized gas accumulation. At the same time, it can dynamically adjust the exhaust opening and exhaust rate according to the real-time pressure inside the tank, always maintaining the pressure inside the tank stably within a safe slightly positive pressure range. When the machine is stopped and in negative pressure conditions, it is equipped with a double-locking structure with a negative pressure anti-backflow stabilizing structure to prevent external air, dust, and bacteria from flowing back into the exhaust port. It ensures smooth exhaust, stable pressure, and no disruption of the anaerobic environment during continuous industrial production.

[0015] Furthermore, the safety cleaning module includes a CIP cleaning component, a residue-preventing directional spray component, and a residue collection component. The CIP cleaning component is installed on one side of the double-walled hollow tank, and the residue-preventing directional spray component is installed inside the double-walled hollow tank. The water outlet pipe of the CIP cleaning component is connected to the double-walled hollow tank through a sealed interface component. The residue-preventing directional spray component is connected to the CIP cleaning component's water outlet pipe, with the spray end facing the entire area inside the double-walled hollow tank to achieve targeted spraying of key areas. The residue collection component is sealed and snapped into the bottom drain port of the arc-shaped, dead-angle-free tank bottom, and is vertically connected to the bottom drain channel of the double-walled hollow tank. The residue collection component is separately connected to a waste liquid collection pipe, realizing residue interception and collection and detachable cleaning connection.

[0016] Furthermore, the control module is electrically connected to the signal output terminals of a multi-point array temperature sensor, oxygen content sensor, pH sensor, and pressure sensor to receive real-time environmental parameters throughout the tank. The control module is also electrically connected to a PTC intelligent heating component, a semiconductor refrigeration component, a variable frequency micro water circulation pump, a pressure-sensing adaptive pressure relief valve assembly, a CIP cleaning component, and an audible and visual alarm unit, forming a complete closed-loop control connection for signal acquisition, logic operation, and execution output. This intelligently regulates the working status of each execution component, achieving integrated intelligent control for industrial-scale fermentation, including constant temperature control, pressure stabilization and exhaust, anaerobic monitoring, online cleaning, and anomaly warning.

[0017] The beneficial effects of the constant-temperature anaerobic kimchi fermentation device provided in this solution are as follows: (1) In response to the problems of high pressure easy to collapse seal, excessive pressure due to exhaust blockage, negative pressure backflow, and air leakage due to aging of seals in industrial-scale fermentation, a double-layer gradient corrosion-resistant pressure-bearing seal, multi-point uniform pressing, negative pressure backflow prevention and multi-level anti-blocking pressure stabilization exhaust integrated closed pressure stabilization system is creatively adopted. Through double-stage filtration anti-blocking, multi-point distributed pressure relief and adaptive pressure stabilization regulation, the industry's stubborn problems of easy blockage of traditional single-hole exhaust, pressure accumulation, high pressure collapse and negative pressure air intake are completely solved. The system maintains a stable micro-positive pressure high-purity anaerobic environment in the tank throughout the process, eliminates the risk of spoilage and scrap of the entire batch of kimchi, and is suitable for long-term continuous industrial production. (2) To address the industrial pain points of uneven temperature control and mass transfer in large tanks, fermentation stratification, and damage to food quality caused by traditional liquid circulation, a static full-area jacketed heat exchange is innovatively adopted. The upper and lower anaerobic areas of the kimchi area in the tank are independently controlled by temperature control and multi-point matrix temperature measurement fitting technology. The traditional external fermentation liquid disturbance heat exchange structure is abandoned, and the whole-area high-precision constant temperature is achieved without material disturbance. The temperature difference gradient between the upper and lower parts of the large tank and the defects of fermentation stratification are completely eliminated, ensuring that the acidity, crispness and flavor of large batches of kimchi are highly uniform, and the consistency of mass production is significantly improved. (3) To address the problems of acidic brine corrosion, seal aging, and high operation and maintenance costs, 316L thickened stainless steel with full-area corrosion resistance and modified fluororubber composite sealing structure are adopted to replace traditional carbon steel, enamel, and ordinary silicone materials. This enables the equipment to resist strong acid and high salt corrosion and the seals to resist aging for a long time, which greatly reduces the probability of equipment corrosion and seal failure. Combined with the modular disassembly and assembly structure, it enables quick replacement of parts and maintenance without downtime, which significantly reduces industrial operation and maintenance costs and downtime losses. (4) To address the problem that the anaerobic state of traditional industrial tanks cannot be monitored in real time and that sampling inspections after opening the lid are prone to contamination, a four-dimensional multi-parameter online monitoring method is adopted. Temperature, oxygen content, pressure and pH are integrated into a sealed sensor monitoring component. This enables real-time monitoring of the fermentation state and anaerobic environment compliance without opening the lid or making contact. It can predict anaerobic failure and fermentation abnormalities in real time. No manual opening of the lid for sampling inspection is required, which completely eliminates the problem of contamination by miscellaneous bacteria and damage to the anaerobic environment after opening the lid. This makes the fermentation process visible, traceable and controllable. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a constant temperature anaerobic kimchi fermentation device proposed in this invention; Figure 2 This is a structural schematic diagram of the fermentation tank module; Figure 3 This is a schematic diagram of the external mounting of the double-layered hollow tank. Figure 4 This is a connection diagram for the constant temperature control module; Figure 5 This is a schematic diagram of the layout structure of the constant temperature and pressure stabilizing pipeline assembly; Figure 6 This is a schematic diagram of the structure of a double-layered hollow tank. Figure 7 This is a schematic diagram of the bottom structure of the removable sealing top cover; Figure 8 This is a diagram showing the internal structure of the removable, sealed top cover. Figure 9 This is a connection diagram for the safety cleaning module.

[0019] The components include: 1. Fermentation tank module; 2. Constant temperature control module; 3. Sealed anaerobic sealing module; 4. Intelligent monitoring module; 5. Control panel; 6. Safe cleaning module; 7. Anti-clogging, pressure-stabilizing, and exhaust module; 101. Double-layer hollow tank; 102. Removable sealed top cover; 103. Rounded bottom with no dead angles; 104. Sealing interface assembly; 105. Stainless steel inner cavity; 106. Insulated outer shell; 107. Polyurethane insulation interlayer; 201. Full-area water circulation heat exchange interlayer; 202. Variable frequency micro water circulation pump; 203. PTC intelligent heating component; 204. Semiconductor refrigeration component; 205. Multi-point array temperature sensor; 206. Constant temperature and pressure stabilizing pipeline assembly; 207. Multi-layer heat storage and insulation structure; 301. Double-layer gradient... Sealing components, 302; Quick-locking components, 303; Full-port sealing plugging connector, 304; Negative pressure anti-backflow stabilizing structure, 305; Outer layer compression silicone ring, 306; Inner layer fluororubber composite sealing gasket, 307; Gravity sealing valve core, 308; Elastic reset components, 309; Anti-impurity sealing valve seat, 310; Vacuum negative pressure blocking chamber, 401; Oxygen content sensor, 402; Pressure sensor, 403; pH sensor, 404; Audible and visual alarm unit, 601; CIP cleaning components, 602; Anti-residue directional spray components, 603; Residue collection components, 701; Multi-stage filtration anti-clogging components, 702; Large particle vegetable leaf interception filter, 703; Micro-fine brine impurity filter layer, 704; Pressure-sensing adaptive pressure relief valve assembly.

[0020] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof. Detailed Implementation

[0021] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0022] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0023] like Figures 1-9 As shown, this invention provides a constant-temperature anaerobic kimchi fermentation device, including a fermentation tank module 1, a constant-temperature control module 2, a sealed anaerobic module 3, an anti-blocking pressure stabilizing exhaust module 7, an intelligent monitoring module 4, a safety cleaning module 6, and a control module. The fermentation tank module 1 is installed on a frame laid on site. The constant-temperature control module 2 is integrally embedded and fully enclosed within the interlayer of the fermentation tank module 1, forming an integrated heat exchange and insulation connection structure with the fermentation tank module 1. The sealed anaerobic module 3 is integrally snapped and pressed into the top port of the fermentation tank module 1. The anti-blocking pressure stabilizing exhaust module 7... The sealed mounting is connected to the exhaust port at the top of the fermentation tank module 1, and is directly connected to the airflow of the fermentation chamber inside the tank; the intelligent monitoring module 4 is sealed and installed on the side wall and the top preset monitoring port of the fermentation tank module 1, and the sensing end extends into the tank cavity to collect parameters; the safety cleaning module 6 is respectively assembled and connected to the outer side wall, the bottom sewage outlet and the upper cleaning port of the fermentation tank module 1; the control panel 5 is installed on the outside of the fermentation tank module 1, and the control module is electrically connected and assembled inside the control panel 5, forming a signal acquisition and control output connection with all electrical control actuators and sensing components.

[0024] Fermentation tank module 1 includes a double-layer hollow tank 101, a detachable sealing top cover 102, a rounded bottom 103 without dead angles, and a sealing interface assembly 104. The detachable sealing top cover 102 is snap-locked and connected to the top of the double-layer hollow tank 101. The rounded bottom 103 without dead angles is integrally formed and connected to the bottom of the double-layer hollow tank 101, communicating with the internal cavity of the double-layer hollow tank 101. The sealing interface assembly 104 is through-sealed and assembled into the double-layer hollow tank 101. The pre-set openings on the side wall are respectively sealed and connected to the pipelines of the constant temperature control module 2, the sensors of the intelligent monitoring module 4, the cleaning pipelines and the sewage pipelines of the safety cleaning module 6; the double-layer hollow tank 101 includes a stainless steel inner cavity 105, an insulated outer shell 106 and a polyurethane insulation interlayer 107. The stainless steel inner cavity 105 can preferably be food-grade 316L stainless steel, and the polyurethane insulation interlayer 107 is filled with high-density polyurethane insulation material.

[0025] The temperature control module 2 is embedded within the interlayer space of the fermentation tank module 1, employing an integrated, built-in installation structure with no external exposed heat exchange pipes. It completely encloses and covers the entire sidewall area and the rounded, corner-free bottom area 103 of the double-layered hollow tank 101. The temperature control module 2 includes a full-area water circulation heat exchange interlayer 201, a variable frequency micro water circulation pump 202, a PTC intelligent heating component 203, a high-precision semiconductor refrigeration component 204, and a multi-point array temperature sensor 205. The constant temperature and pressure stabilizing pipeline assembly 206, with a full-area water circulation heat exchange jacket 201 nested within the side wall of the double-layer hollow tank 101, and a variable frequency micro water circulation pump 202 installed on the outside of the double-layer hollow tank 101, connects the jacket of the double-layer hollow tank 101 and the full-area water circulation heat exchange jacket 201. The constant temperature and pressure stabilizing pipeline assembly 206 consists of thin tubes arranged in a ring and two sets of external connecting main pipes. The bottom of the thin tubes is connected to one set of main pipes, and the top of the thin tubes is connected to a... A ring pipe is connected, and another set of main pipes is connected through the ring pipe. The two sets of main pipes serve as connection ports for the constant temperature and pressure stabilizing pipeline assembly 206. The PTC intelligent heating component 203 and the high-precision semiconductor refrigeration component 204 are installed on the outside of the full-area water circulation heat exchange jacket 201 and are respectively connected in series to both ends of the variable frequency micro water circulation pump 202. The interfaces at both ends of the constant temperature and pressure stabilizing pipeline assembly 206 are respectively connected to the PTC intelligent heating component 203 and the high-precision semiconductor refrigeration component 204. The constant temperature and pressure stabilizing pipeline assembly 206... 06. The PTC intelligent heating component 203, the variable frequency micro water circulation pump 202, and the high-precision semiconductor refrigeration component 204 form a closed-loop heat exchange connection structure; the multi-point array temperature sensor 205 is sealed and embedded in the inner wall of the double-layer hollow tank 101, with the sensing end in contact with the fermentation medium inside the tank and the signal end electrically connected to the control module; the outer side of the full-area water circulation heat exchange jacket 201 is covered with a multi-layer heat storage and insulation structure 207, which is tightly fitted and fixed to the inner side of the outer shell of the double-layer hollow tank 101.

[0026] The sealed anaerobic sealing module 3 includes a double-layer gradient sealing component 301, a quick-locking component 302, a negative pressure anti-backflow stabilizing structure 304, and a full-port sealing plug 303. The double-layer gradient sealing component 301 is integrally nested and installed on the lower end face of the detachable sealing top cover 102, and is pressed tightly and sealed against the top end face of the double-layer hollow tank 101. The quick-locking component 302 is circumferentially and uniformly fixedly installed on the outer side of the top of the detachable sealing top cover 102. The movable end of the quick-locking component 302 presses against the edge of the detachable sealing top cover 102 to form a multi-point mechanical locking connection structure. The full-port sealing plug 303 is sealed and fitted into the internal interface of the sealing interface component 104. The negative pressure anti-backflow stabilizing structure 304 is embedded in... The exhaust passage is connected in series with the top of the removable sealing top cover 102. The upstream is connected to the exhaust pipe at the top of the removable sealing top cover 102, and the downstream is connected to the anti-blocking and pressure-stabilizing exhaust module 7. The double-layer gradient sealing component 301 includes an outer layer compression silicone ring 305 and an inner layer fluororubber composite sealing gasket 306, forming an outer compression and inner corrosion-resistant double-layer sealing barrier. The outer layer compression silicone ring 305 is responsible for high-strength planar compression sealing and bears the micro-positive pressure load of the tank. The inner layer fluororubber composite sealing gasket 306 directly contacts the acidic high-salt mist and brine vapor in the tank. The quick-locking component 302 adopts a multi-point uniform compression structure. Each component consists of a screw and a nut that are rotatably connected to the removable sealing top cover 102. The nut and the screw are threadedly connected.

[0027] The intelligent monitoring module 4 includes an oxygen content sensor 401, a pH sensor 403, a pressure sensor 402, and an audible and visual alarm unit 404. The oxygen content sensor 401, pH sensor 403, and pressure sensor 402 are each sealed and embedded one-to-one in the preset monitoring interface of the fermentation tank module 1. The detection end of each sensor extends into the double-layered hollow tank 101 and is in direct contact with the fermentation environment. The signal output end is electrically connected to the signal acquisition port of the control module via a shielded wire. The audible and visual alarm unit 404 is fixedly installed above the equipment control panel 5. Its signal input end is electrically connected to the alarm output port of the control module, forming an abnormal signal trigger linkage connection with the control module. The negative pressure anti-backflow stabilization system... The pressure structure 304 includes a gravity sealing valve core 307, an elastic reset component 308, an anti-impurity sealing valve seat 309, and a vacuum negative pressure blocking chamber 310. The vacuum negative pressure blocking chamber 310 consists of upper and lower chambers, which are embedded inside the removable sealing top cover 102. The upper chamber is connected to the exhaust pipe at the top of the removable sealing top cover 102. The anti-impurity sealing valve seat 309 is connected to the upper and lower chambers of the vacuum negative pressure blocking chamber 310. The gravity sealing valve core 307 is slidably disposed inside the anti-impurity sealing valve seat 309. The upper end of the elastic reset component 308 is connected to the top of the anti-impurity sealing valve seat 309, and the lower end of the elastic reset component 308 is fixedly connected to the top surface of the gravity sealing valve core 307.

[0028] The anti-clogging and pressure-stabilizing exhaust module 7 is sealed and connected in series to the bottom of the detachable sealed top cover 102. Upstream, it is controllably connected to the outside atmosphere through the negative pressure anti-backflow stabilizing structure 304, and downstream, it is connected to the double-layer hollow tank 101. The anti-clogging and pressure-stabilizing exhaust module 7 includes a multi-stage filtration anti-clogging component 701 and a pressure-sensing adaptive pressure relief valve group 704. The multi-stage filtration anti-clogging component 701 includes a large-particle vegetable leaf interception filter 702 and a fine brine impurity filter layer 703. The large-particle vegetable leaf interception filter 702 and the fine brine impurity filter layer 703 are assembled in series from bottom to top from the air inlet to the air outlet to form a two-stage progressive filtration connection structure, which is installed at the bottom of the detachable sealed top cover 102. The pressure-sensing adaptive pressure relief valve group 704 is connected in series to the bottom of the detachable sealed top cover 102, connecting the lower chamber of the vacuum negative pressure blocking chamber 310 and the fine brine impurity filter layer 703. The valve body control end is electrically connected to the control module.

[0029] The safety cleaning module 6 includes a CIP cleaning component 601, a residue-preventing directional spray component 602, and a residue collection component 603. The CIP cleaning component 601 is installed on one side of the double-walled hollow tank 101, and the residue-preventing directional spray component 602 is installed inside the double-walled hollow tank 101. The water outlet pipe of the CIP cleaning component 601 is connected to the double-walled hollow tank 101 through a sealing interface component 104. The residue-preventing directional spray component 602 is connected to the water outlet pipe of the CIP cleaning component 601, and the spray end faces the entire area inside the double-walled hollow tank 101. The residue collection component 603 is sealed and snapped into the bottom drain port of the arc-shaped, dead-angle-free tank bottom 103, and is vertically connected to the bottom drain channel of the double-walled hollow tank 101. The residue collection component 603 is separately connected to a waste liquid collection pipe.

[0030] During specific assembly, the full-area water circulation heat exchange jacket 201 of the constant temperature control module 2 is pre-embedded and installed inside the jacket of the double-layer hollow tank 101 of the fermentation tank module 1, completing the water circulation pipeline connection to ensure smooth media circulation; the double-layer gradient sealing component 301 is nested and installed on the end face of the detachable sealing top cover 102, and the top cover is sealed and fitted without gaps by uniformly pressing the multi-point quick-locking component 302 around the circumference; the multi-point array temperature sensor 205, oxygen content sensor 401, and pressure sensor 402 are installed. The pH sensor 403 is embedded in the preset detection interface of the double-layer hollow tank 101 and sealed by the full-port sealing plug joint 303; the anti-blocking pressure stabilizing exhaust module 7 is connected to the exhaust interface of the detachable sealing top cover 102, and the negative pressure anti-backflow stabilizing structure 304 is used to prevent air backflow. The audible and visual alarm unit 404 and the control panel 5 are fixed on the outside of the equipment, and the electrical connection of all electrical components and control modules is completed. After assembly, an airtightness pressure test is performed to ensure that there is no air leakage under high pressure and negative pressure conditions.

[0031] In practical use, the equipment is first pre-treated by disassembling removable parts such as sealing gaskets and exhaust valves. All internal components and interfaces of the double-layered hollow tank 101 that come into contact with materials are cleaned, disinfected by soaking in disinfectant, and then reinstalled after drying to ensure that the cavity is clean and free of bacteria. Then, the pre-treated fresh vegetables, salt, spices, and cooled boiled water are loaded into the fermentation tank according to the process ratio, and the loading coefficient is strictly controlled at 65% to 80% to ensure that the vegetables are completely submerged below the brine surface and to leave a buffer space for fermentation. After loading, the removable sealing top cover 102 is closed and completely locked by the quick-locking component 302 to seal all unused interfaces and ensure the airtightness of the cavity.

[0032] Fermentation parameters are set via control panel 5. For conventional kimchi fermentation, the constant temperature is set to 22-25℃, the automatic exhaust pressure threshold is 0.03MPa, and the fermentation time is 3-7 days. After setting the parameters, the equipment is started. The control module controls the constant temperature control module 2 to work. The multi-point array temperature sensor 205 collects the temperature data of the entire upper and lower parts of the tank in real time, drives the variable frequency micro water circulation pump 202 to circulate the heat transfer medium in zones, and works with the PTC intelligent heating component 203 and the semiconductor cooling component 204 to adaptively adjust the temperature and quickly eliminate the temperature difference gradient in the large tank, and stably lock the temperature of the entire tank within the set range, continuously and with high precision constant temperature closed-loop control.

[0033] During fermentation, oxygen sensor 401, pressure sensor 402, pH sensor 403, and multi-point array temperature sensor 205 collect environmental parameters inside the tank in real time and transmit them to the STC89C52 microcontroller. The anaerobic metabolism of lactic acid bacteria produces carbon dioxide, increasing the pressure inside the tank. When the pressure reaches a preset threshold, the control module automatically opens the pressure-sensing adaptive pressure relief valve group 704 in the anti-blocking pressure stabilizing exhaust module 7 to release pressure. The valve automatically closes after the pressure drops back to the standard value. In the later stages of fermentation, when the tank temperature decreases and gas contraction generates negative pressure, the negative pressure anti-backflow stabilizing structure 304 instantly locks the exhaust channel, preventing backflow of external air and continuously maintaining a high-purity anaerobic environment in the chamber. If problems such as sealing failure, abnormal temperature, excessive oxygen, or abnormal pH occur, the equipment immediately triggers the audible and visual alarm unit 404 to remind the user to perform timely maintenance.

[0034] The equipment supports gradient temperature-controlled fermentation. In the early stage of fermentation, a high temperature of 20-28℃ is used to accelerate the proliferation of lactic acid bacteria and rapidly reduce the pH value of the environment. In the middle stage of fermentation, a stable temperature of 22-25℃ is maintained to promote the accumulation of flavor substances. After fermentation, the equipment automatically stops and can be manually switched to a low-temperature preservation mode of 4-8℃ to inhibit bacterial activity, lock in the flavor of kimchi, and extend the shelf life. After the batch production is completed, the built-in CIP cleaning program in the control module can be activated. The CIP in-situ cleaning component completes the automatic cleaning and disinfection of the entire tank without dead corners. The residue enters the collection component through the sewage discharge port for centralized cleaning. There is no need to disassemble the machine or empty the old brine, which can quickly complete the preparation for production change. Finally, the lid is opened to discharge the material or to complete the cleaning and disinfection of the equipment, completing the single batch production fermentation process. This process can be repeated for the next use.

[0035] The above is the specific workflow of this invention. This step can be repeated next time it is used.

[0036] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0037] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the invention.

[0038] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the spirit of the invention, such designs should fall within the protection scope of the present invention.

Claims

1. A constant-temperature anaerobic kimchi fermentation device, characterized in that: The system includes a fermentation tank module (1), a constant temperature control module (2), a sealed anaerobic sealing module (3), an anti-blocking pressure stabilizing exhaust module (7), an intelligent monitoring module (4), a safety cleaning module (6), and a control module. The fermentation tank module (1) is installed on a frame laid on the site. The constant temperature control module (2) is embedded and fully enclosed inside the interlayer of the fermentation tank module (1), forming an integrated heat exchange and insulation connection structure with the fermentation tank module (1). The sealed anaerobic sealing module (3) is snapped and pressed together at the top port of the fermentation tank module (1). The anti-blocking pressure stabilizing exhaust module (7) is sealed and embedded in the fermentation tank module (1). The top exhaust port is directly connected to the fermentation chamber inside the tank; the intelligent monitoring module (4) is sealed and fitted into the side wall and top preset monitoring port of the fermentation tank module (1), and the sensing end extends into the tank cavity to collect parameters; the safety cleaning module (6) is respectively assembled and connected to the outer side wall, bottom drain end and upper cleaning port of the fermentation tank module (1); the control panel (5) is installed on the outside of the fermentation tank module (1), and the control module is electrically connected and assembled inside the control panel (5), forming a signal acquisition and control output connection with all electrical control execution components and sensing components; the fermentation tank module (1) includes a double-layer hollow tank ( 101) and a removable sealing top cover (102), the removable sealing top cover (102) being snap-locked and connected to the top of the double-layer hollow tank (101); the sealed anaerobic sealing module (3) includes a negative pressure anti-backflow stabilizing structure (304), the negative pressure anti-backflow stabilizing structure (304) being embedded in the middle section of the exhaust passage at the top of the removable sealing top cover (102), the upstream being connected to the exhaust pipe at the top of the removable sealing top cover (102), and the downstream being connected to the anti-blocking stabilizing exhaust module (7); the negative pressure anti-backflow stabilizing structure (304) includes a gravity sealing valve core (307), an elastic reset component (308), and an anti-impurity sealing valve seat (309). The vacuum negative pressure blocking cavity (310) consists of two chambers, an upper chamber and an lower chamber, which are embedded inside a removable sealing top cover (102). The upper chamber is connected to the exhaust pipe at the top of the removable sealing top cover (102). The impurity-proof sealing valve seat (309) is connected to the upper and lower chambers of the vacuum negative pressure blocking cavity (310). The gravity sealing valve core (307) is slidably disposed in the impurity-proof sealing valve seat (309). The upper end of the elastic reset component (308) is connected to the top of the impurity-proof sealing valve seat (309), and the lower end of the elastic reset component (308) is fixedly connected to the top surface of the gravity sealing valve core (307).

2. The constant temperature anaerobic kimchi fermentation device according to claim 1, characterized in that: The fermentation tank module (1) also includes a rounded bottom without dead angles (103) and a sealing interface assembly (104). The rounded bottom without dead angles (103) is integrally formed and connected to the bottom of the double-layer hollow tank (101), and communicates with the internal cavity of the double-layer hollow tank (101). The sealing interface assembly (104) is installed through and sealed at the pre-set opening position on the side wall of the double-layer hollow tank (101), and is respectively sealed and connected to the pipeline of the constant temperature control module (2), the sensor of the intelligent monitoring module (4), the cleaning pipeline of the safety cleaning module (6), and the sewage pipeline.

3. The constant temperature anaerobic kimchi fermentation device according to claim 2, characterized in that: The double-layer hollow tank (101) includes a stainless steel inner cavity (105), an insulated outer shell (106), and a polyurethane insulation interlayer (107). The stainless steel inner cavity (105) is preferably made of food-grade 316L stainless steel, and the polyurethane insulation interlayer (107) is filled with high-density polyurethane insulation material.

4. The constant temperature anaerobic kimchi fermentation device according to claim 3, characterized in that: The constant temperature control module (2) is integrally embedded in the interlayer space of the fermentation tank module (1), adopting an integrated built-in installation structure with no external exposed heat exchange pipelines. It completely covers the entire side wall and the arc-shaped bottom (103) area of ​​the double-layer hollow tank (101). The constant temperature control module (2) includes a full-area water circulation heat exchange interlayer (201), a variable frequency micro water circulation pump (202), a PTC intelligent heating component (203), a high-precision semiconductor refrigeration component (204), a multi-point array temperature sensor (205), and a constant temperature and pressure stabilizing pipeline component (206). The full-area water circulation heat exchange interlayer (201) is formed and nested in the side wall of the double-layer hollow tank (101). The variable frequency micro water circulation pump (202) is installed on the outside of the double-layer hollow tank (101). The constant temperature and pressure stabilizing pipeline component (206) is installed in the interlayer space of the fermentation tank module (101). The pipeline assembly (206) penetrates and connects the interlayer of the double-layer hollow tank (101) and the full-area water circulation heat exchange interlayer (201), and is also connected to the external variable frequency micro water circulation pump (202) to form a closed-loop heat exchange connection structure; the PTC intelligent heating component (203) and the high-precision semiconductor cooling component (204) are installed on the outside of the full-area water circulation heat exchange interlayer (201) and are respectively connected in series to both ends of the variable frequency micro water circulation pump (202); the multi-point array temperature sensor (205) is sealed and embedded in the inner wall of the double-layer hollow tank (101), with the sensing end in contact with the fermentation medium inside the tank and the signal end electrically connected to the control module; the outside of the full-area water circulation heat exchange interlayer (201) is covered with a multi-layer heat storage and insulation structure (207), which is tightly fitted and fixed to the inner side of the shell of the double-layer hollow tank (101).

5. The constant temperature anaerobic kimchi fermentation device according to claim 4, characterized in that: The sealed anaerobic sealing module (3) further includes a double-layer gradient sealing component (301), a quick-locking component (302), and a full-port sealing plug joint (303). The double-layer gradient sealing component (301) is integrally fitted and nested on the lower end face of the detachable sealing top cover (102), and is pressed and sealed against the top end face of the double-layer hollow tank (101). The quick-locking component (302) is circumferentially and uniformly fixed on the outer side of the top of the detachable sealing top cover (102). The movable end of the quick-locking component (302) presses against the edge of the detachable sealing top cover (102) to form a multi-point mechanical locking connection structure. The full-port sealing plug joint (303) The sealing plug (303) is fitted into the internal interface of the sealing interface assembly (104); the double-layer gradient sealing assembly (301) includes an outer layer compression silicone ring (305) and an inner layer fluororubber composite sealing gasket (306), forming an outer compression and inner corrosion-resistant double-layer sealing barrier. The outer silicone ring is responsible for planar high-strength compression sealing and bears the micro-positive pressure load of the tank. The inner fluororubber sealing gasket directly contacts the acidic high-salt mist and brine vapor inside the tank; the quick-locking assembly (302) adopts a multi-point uniform compression structure. Each assembly consists of a screw and a nut that are rotatably connected to the detachable sealing top cover (102). The nut and the screw are threadedly connected.

6. The constant temperature anaerobic kimchi fermentation device according to claim 5, characterized in that: The intelligent monitoring module (4) includes an oxygen content sensor (401), a pH sensor (403), a pressure sensor (402), and an audible and visual alarm unit (404). The oxygen content sensor (401), pH sensor (403), and pressure sensor (402) are respectively sealed and embedded in the preset monitoring interface of the fermentation tank module (1). The detection end of each sensor extends into the double-layer hollow tank (101) and is in direct contact with the fermentation environment. The signal output end is electrically connected to the signal acquisition port of the control module through a shielded wire. The audible and visual alarm unit (404) is fixedly installed above the equipment control panel (5). The signal input end is electrically connected to the alarm output port of the control module, forming an abnormal signal trigger linkage connection with the control module.

7. The constant temperature anaerobic kimchi fermentation device according to claim 6, characterized in that: The anti-clogging and pressure-stabilizing exhaust module (7) is integrally sealed and connected in series to the bottom of the detachable sealed top cover (102). Upstream, it is controllably connected to the outside atmosphere through a negative pressure anti-backflow stabilizing structure (304), and downstream, it is connected to the double-layer hollow tank (101). The anti-clogging and pressure-stabilizing exhaust module (7) includes a multi-stage filtration anti-clogging component (701) and a pressure-sensing adaptive pressure relief valve group (704). The multi-stage filtration anti-clogging component (701) includes a large-particle vegetable leaf interception filter (702) and a fine brine impurity filter layer (704). 03), the large-particle vegetable leaf interception filter (702) and the fine brine impurity filter layer (703) are assembled in series from bottom to top from the air inlet to the air outlet to form a two-stage progressive filtration connection structure, which is installed at the bottom of the detachable sealing top cover (102). The pressure-sensing adaptive pressure relief valve group (704) is connected in series at the bottom of the detachable sealing top cover (102) to connect the lower chamber of the vacuum negative pressure blocking cavity (310) and the large-particle vegetable leaf interception filter (702). The valve body control end is electrically connected to the control module.

8. The constant temperature anaerobic kimchi fermentation device according to claim 7, characterized in that: The safety cleaning module (6) includes a CIP cleaning component (601), a residue-preventing directional spray component (602), and a residue collection component (603). The CIP cleaning component (601) is installed on one side of the double-walled hollow tank (101), and the residue-preventing directional spray component (602) is installed inside the double-walled hollow tank (101). The water outlet pipe of the CIP cleaning component (601) is connected to the double-walled hollow tank (101) through a sealing interface component (104). The residue-preventing directional spray component (602) is connected to the water outlet pipe of the CIP cleaning component (601), and the spray end faces the entire area inside the double-walled hollow tank (101). The residue collection component (603) is sealed and snapped into the bottom drain port of the arc-shaped bottom of the tank (103), and is vertically connected to the bottom drain channel of the double-walled hollow tank (101). The residue collection component (603) is separately connected to the waste liquid collection pipe.

9. The constant temperature anaerobic kimchi fermentation device according to claim 7, characterized in that: The control module is electrically connected to the signal output terminals of the multi-point array temperature sensor (205), oxygen content sensor (401), pH sensor (403), and pressure sensor (402) to receive real-time environmental parameters of the entire tank. The control module is also electrically connected to the PTC intelligent heating component (203), semiconductor refrigeration component (204), variable frequency micro water circulation pump (202), pressure sensing adaptive pressure relief valve group (704), CIP cleaning component (601), and audible and visual alarm unit (404).

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