Thawing device

Abstract

The application relates to a thawing device, a freezing barrel is used for storing fermented liquid after freezing; a liquid storage tank is located on the side of the freezing barrels facing the gravity direction and is used for storing the fermented liquid after thawing; a discharging frame is movably arranged on the liquid storage tank, and the freezing barrels are arranged in an inverted mode on the discharging frame and are used for connecting the freezing barrels and the liquid storage tank; the freezing barrel comprises a flow guide pipe, the discharging frame comprises a lifting frame and a moving plate, the moving plate is slidably arranged in the lifting frame, and the freezing barrels are arranged on the moving plate; a plurality of discharging nozzles are arranged on the side of the liquid storage tank facing the freezing barrels, a plurality of sealing plugs are movably arranged on the inner wall of the side of the liquid storage tank away from the gravity direction; in the corresponding sealing plug and the discharging nozzle, the sealing plug is used for intermittently sealing the discharging nozzle. The application is designed through normal-temperature natural thawing and gravity automatic flow guiding, so that the freezing barrels can be completely thawed in 1-3 days, the batch demand of a large fermentation workshop can be easily met, and no additional labor is needed.

Description

Technical Field

[0001] This application relates to the field of fermentation broth cultivation technology, and in particular to a thawing device. Background Technology

[0002] In the industrial production of biomass fermentation, the storage and thawing efficiency of the fermentation broth directly affects production pace, cost control, and product quality. To save energy, reduce consumption, and improve preparation efficiency, multiple batches of fermentation broth are typically prepared and then stored frozen. Frozen fermentation broth can maintain enzyme activity for months or even years without reduction, requiring less equipment and incurring lower costs. Practical experience has verified that frozen fermentation broth can maintain enzyme activity for months or even years, solving the problem of easy spoilage during short-term storage and ensuring that the fermentation broth retains optimal activity upon use, thus guaranteeing quality stability in subsequent production stages.

[0003] Despite the significant advantages of cryopreservation, the thawing of frozen fermentation broth has become a core pain point in current production, directly leading to decreased production efficiency, cost waste, and a poor user experience. Thawing frozen fermentation broth is a critical issue that urgently needs to be addressed. Complete thawing in a refrigerator is time-consuming, typically requiring several days to two weeks, and enzyme activity decreases, hindering fast-paced production. Furthermore, the cumbersome and time-consuming process makes thawing in refrigerators undesirable for operators. However, without freezing, the fermentation broth will experience decreased enzyme activity and even mold and foul odors after two weeks of low-temperature storage, rendering the entire batch unusable and causing significant resource waste and quality risks. Therefore, designing and manufacturing a device for the rapid thawing of frozen fermentation broth is extremely important. Utility Model Content

[0004] Therefore, it is necessary to provide a thawing device to address the problems of long thawing time and reduced enzyme activity in the current process of thawing frozen fermentation broth, which is not conducive to the fast pace of production. Moreover, due to the cumbersome operation and long time, operators are reluctant to thaw the broth in the refrigerator. Furthermore, after half a month of low-temperature storage, the enzyme activity of the fermentation broth will decrease or even mold and smell.

[0005] According to one aspect of this application, a thawing device is provided for frozen fermentation broth, comprising: a plurality of freezing tanks for storing frozen fermentation broth; a storage tank located on the side of the plurality of freezing tanks facing the direction of gravity for storing the thawed fermentation broth; and a feeding rack movably disposed on the storage tank, wherein the plurality of freezing tanks are disposed on the feeding rack.

[0006] The freezing tank includes a guide pipe, and the unloading rack includes a lifting frame and a moving plate. The moving plate is slidably disposed within the lifting frame, and multiple freezing tanks are disposed on the moving plate. The liquid storage tank has multiple unloading nozzles on the side facing the freezing tank, and multiple sealing plugs corresponding to the unloading nozzles are movably installed on the inner wall of the liquid storage tank on the side opposite to the direction of gravity. Among the corresponding sealing plugs and unloading nozzles, the sealing plugs are used to intermittently seal the unloading nozzles. When the guide pipe is inserted into the corresponding unloading nozzle, the sealing plug opens, and the guide pipe communicates with the interior of the liquid storage tank.

[0007] In one embodiment, the lifting frame has a sliding groove inside, and the moving plate is provided with a slide rail. The slide rail is slidably disposed in the sliding groove, and the moving plate is slidably disposed on the lifting frame via the slide rail. The moving plate is provided with a plurality of limiting seats corresponding to a plurality of freezing barrels. In the corresponding limiting seat and freezing barrel, the freezing barrel is inverted on the limiting seat.

[0008] In one embodiment, the defrosting device includes a plurality of cylinders, all of which are mounted on the liquid storage tank, and the output ends of the plurality of cylinders are connected to the lifting frame; the plurality of freezing barrels are movably disposed on the side of the liquid storage tank away from the direction of gravity via the plurality of cylinders.

[0009] In one embodiment, the discharge nozzle includes a pressing boss and a sealing boss. The pressing boss is used to fit against the outer wall of the guide tube facing the liquid storage tank. The sealing boss and the pressing boss have a height difference in the direction of gravity. The sealing boss is used to seal the fitting area between the guide tube and the pressing boss. A plurality of magnetic sheets are installed on the outer wall of the pressing boss facing the freezing tank.

[0010] In one embodiment, the sealing plug includes a convex ring and a flow guide. The convex ring is used to fit against the inner wall of the storage tank on the side opposite to the direction of gravity. The flow guide is movably disposed inside the discharge nozzle and is used to guide the thawed fermentation liquid into the storage tank.

[0011] In one embodiment, a plurality of push rods extending away from the direction of gravity are fixedly disposed on the convex ring, and a through lifting cavity is formed on the extrusion protrusion, and the push rods are slidably disposed in the lifting cavity; a plurality of elastic elements are connected to the convex ring, and one end of the elastic element away from the direction of gravity is connected to the inner wall of the liquid storage tank on the side away from the direction of gravity; the sealing plug is movably connected to the liquid storage tank through the elastic element.

[0012] In one embodiment, a first control valve is installed on the guide pipe, a discharge pipe is provided on the liquid storage tank, and a second control valve is installed on the discharge pipe.

[0013] In one embodiment, the liquid storage tank is provided with an observation window, which is made of transparent material and has scale lines on its outer wall.

[0014] In one embodiment, the liquid storage tank is provided with a control panel, and multiple rollers are movably mounted on the liquid storage tank.

[0015] In one embodiment, a handle is provided on the outer wall of the freezing drum, and a handle is provided on the movable plate.

[0016] This application has the following beneficial effects:

[0017] The fermentation broth in this application's freezing tank can be frozen and stored for up to several months without any decrease in enzyme activity, solving the problem of easy spoilage during traditional short-term storage. After thawing, the storage tank maintains a constant temperature of 1-8℃. Tests have shown that enzyme activity remains completely stable within two weeks at this temperature. Even if not used immediately after thawing, it can ensure the subsequent fermentation effect and avoid fluctuations in production quality due to decreased enzyme activity. The device, through room-temperature natural thawing and gravity-assisted automatic flow design, allows the freezing tank to thaw completely within 1-3 days. It supports parallel thawing of multiple tanks without requiring additional manual labor, easily meeting the batch requirements of large-scale fermentation workshops. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of an embodiment of this application.

[0019] Figure 2 This is a three-dimensional structural diagram of a freezing tank in one embodiment of this application.

[0020] Figure 3 This is a three-dimensional structural diagram of the unloading rack in one embodiment of this application.

[0021] Figure 4 This is a partial cross-sectional view of the liquid storage tank in one embodiment of this application.

[0022] Figure 5 This is a three-dimensional structural diagram of the feed nozzle in one embodiment of this application.

[0023] Figure 6 This is a three-dimensional structural diagram of the sealing plug in one embodiment of this application.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1. Freezing container; 101. Handle; 102. Drain tube; 103. First control valve;

[0026] 2. Unloading rack; 201. Lifting frame; 202. Slide groove; 203. Moving plate; 204. Slide rail; 205. Limit seat; 206. Handle;

[0027] 3. Liquid storage tank; 301. Cylinder; 302. Roller; 303. Feed pipe; 304. Second control valve; 305. Observation window; 306. Scale line; 307. Control panel; 308. Feed nozzle; 3081. Extrusion boss; 3082. Sealing boss; 309. Magnetic sheet; 310. Lifting chamber; 311. Sealing plug; 3111. Convex ring; 3112. Guide section; 312. Push rod; 313. Elastic element. Detailed Implementation

[0028] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0029] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application 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, and therefore should not be construed as a limitation of this application.

[0030] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0031] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0032] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0033] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0034] See appendix Figure 1 -Appendix Figure 6 , Figure 1 A schematic diagram of the overall structure of a thawing device according to an embodiment of this application is shown. The device is used for frozen fermentation liquid and includes: multiple freezing tanks 1 for storing frozen fermentation liquid; a liquid storage tank 3 located on the side of the multiple freezing tanks 1 facing the direction of gravity for storing thawed fermentation liquid; and a feeding rack 2 movably mounted on the liquid storage tank 3, with the multiple freezing tanks 1 inverted and mounted on the feeding rack 2 for connecting the freezing tanks 1 and the liquid storage tank 3.

[0035] The freezing tank 1 includes a guide pipe 102, and the unloading rack 2 includes a lifting frame 201 and a moving plate 203. The moving plate 203 is slidably disposed within the lifting frame 201, and multiple freezing tanks 1 are disposed on the moving plate 203. The liquid storage tank 3 is provided with multiple unloading nozzles 308 on the side facing the freezing tank 1. Multiple sealing plugs 311 corresponding to the multiple unloading nozzles 308 are movably installed on the inner wall of the liquid storage tank 3 on the side away from the direction of gravity. Among the corresponding sealing plugs 311 and unloading nozzles 308, the sealing plugs 311 are used to intermittently seal the unloading nozzles 308. When the guide pipe 102 is inserted into the corresponding unloading nozzle 308, the sealing plugs 311 are opened and the guide pipe 102 is connected to the interior of the liquid storage tank 3.

[0036] When using this equipment, the freezing tank 1 is first loaded and positioned. The operator inverts the freezing tank 1 using the handle 101 and places it into the limiting seat 205 of the moving plate 203. The operator pushes the handle 206 to make the moving plate 203 slide along the slide groove 202 of the lifting frame 201 until the guide pipe 102 of each freezing tank 1 is aligned with the discharge nozzle 308 of the liquid storage tank 3.

[0037] Then, the cylinder 301 is activated via the control panel 307, causing the lifting frame 201 to move the moving plate 203 and the freezer to descend slowly. When the guide tube 102 is inserted into the discharge nozzle 308, the guide tube 102 abuts against the extrusion boss 3081. Simultaneously, the guide tube 102 pushes the sealing plug 311 downwards, and the guide part 3112 extends out of the discharge nozzle 308. At room temperature, the thawed fermentation broth flows into the storage tank 3 under gravity. The operator monitors the temperature of the storage tank 3 via the control panel 307.

[0038] See appendix Figure 3 The lifting frame 201 has a sliding groove 202 inside, and the moving plate 203 is provided with a sliding rail 204. The sliding rail 204 is slidably disposed in the sliding groove 202, and the moving plate 203 is slidably disposed on the lifting frame 201 via the sliding rail 204. The moving plate 203 is provided with multiple limiting seats 205 corresponding to multiple freezing barrels 1. In the corresponding limiting seat 205 and freezing barrel 1, the freezing barrel 1 is inverted on the limiting seat 205.

[0039] In some embodiments, the slide groove 202 is located on the inner wall of the lifting frame 201 and extends horizontally, employing a U-shaped or dovetail groove structure to ensure that the slide rail 204 is fully constrained in the vertical direction. The clearance between the slide rail 204 and the slide groove 202 is controlled within the range of 0.1-0.2mm, thereby ensuring that the moving plate 203 drives the freezing drum 1 to move smoothly without significant shaking. Operators can easily push and pull the moving plate 203 using the handle 206, facilitating the replacement of the freezing drum 1 and reducing labor intensity.

[0040] When loading the bucket, pull the movable plate 203 out of the lifting frame 201, and use the handle 101 to invert the freezing bucket 1 into the limiting seat 205. Finally, push the movable plate 203 back to the initial position.

[0041] See appendix Figure 1 and attached Figure 3 The defrosting device includes multiple cylinders 301, all of which are mounted on the liquid storage tank 3. The output ends of the multiple cylinders 301 are connected to the lifting frame 201. Multiple freezing barrels 1 are movably positioned on the side of the liquid storage tank 3 away from the direction of gravity through the multiple cylinders 301.

[0042] In some embodiments, cylinder 301 provides a stable driving force for lifting frame 201, enabling automatic docking and rapid separation between freezing tank 1 and liquid storage tank 3, completely replacing traditional manual lifting operations, and greatly improving the automation level and operating efficiency of the device.

[0043] The operator initiates the docking mode via control panel 307. Four cylinders 301 simultaneously retract their piston rods, causing the lifting frame 201 to slowly descend, precisely inserting the guide pipe 102 of the freezing tank 1 into the discharge nozzle 308 of the liquid storage tank 3. After thawing, the separation mode is activated. Cylinders 301 simultaneously extend their piston rods, causing the lifting frame 201 to rise, and the guide pipe 102 automatically withdraws from the discharge nozzle 308.

[0044] See appendix Figure 5 -Appendix Figure 6 The discharge nozzle 308 includes a pressing boss 3081 and a sealing boss 3082. The pressing boss 3081 is used to fit against the outer wall of the guide pipe 102 facing the liquid storage tank 3. The sealing boss 3082 and the pressing boss 3081 have a height difference in the direction of gravity. The sealing boss 3082 is used to seal the fitting point between the guide pipe 102 and the pressing boss 3081. Multiple magnetic sheets 309 are installed on the outer wall of the pressing boss 3081 facing the freezing tank 1.

[0045] In some embodiments, in the structure of the discharge nozzle 308 of the storage tank 3, the extrusion boss 3081, the sealing boss 3082, and the matching magnetic sheet 309 are the core design details for achieving precise docking and efficient sealing of the guide tube 102. Through structural cooperation, these three components solve problems such as incomplete sealing and positioning deviation when the guide tube 102 and the discharge nozzle 308 are docked, ensuring that the thawing fluid flows into the storage tank 3 without leakage, while also improving the convenience of the docking operation.

[0046] The sealing boss 3082 is an annular protrusion integrally formed at the top inlet of the discharge nozzle 308. The protrusion height is 5-10mm, and its inner diameter perfectly matches the outer diameter of the guide tube 102, ensuring that the outer wall of the guide tube 102 fits tightly against the inner wall of the boss when inserted. When the guide tube 102 is inserted into the discharge nozzle 308, the inner wall of the sealing boss 3082 forms a radial constraint on the guide tube 102, ensuring that the guide tube 102 is always inserted along the central axis of the discharge nozzle 308, preventing deviation or tilting.

[0047] When the guide tube 102 is inserted to fit tightly against the sealing boss 3082, its end can push the sealing plug 311 in the liquid storage tank 3 to open completely, and at the same time squeeze the boss 3081 to complete the initial positioning. This achieves the simultaneous completion of positioning, sealing and opening of the sealing plug 311, eliminating the need for operators to repeatedly adjust the insertion depth and improving docking efficiency.

[0048] In some embodiments, the magnetic sheet 309 is an auxiliary positioning component that improves the ease and stability of docking the guide tube 102. Through magnetic adsorption, it enables the guide tube 102 and the discharge nozzle 308 to be quickly aligned and temporarily fixed, reducing the precision requirements of manual operation.

[0049] The magnetic sheet 309 is made of strong magnetic neodymium iron boron material. The adsorption force needs to be moderate so that it can easily adsorb the guide tube 102 to ensure that it does not shift during docking, and can be separated with a slight external force when the guide tube 102 needs to be pulled out, avoiding the difficulty of operation caused by excessive adsorption.

[0050] See appendix Figure 5 -Appendix Figure 6 The sealing plug 311 includes a convex ring 3111 and a flow guide 3112. The convex ring 3111 is used to fit against the inner wall of the storage tank 3 on the side opposite to the direction of gravity. The flow guide 3112 is movably disposed inside the discharge nozzle 308 and is used to guide the thawed fermentation liquid into the storage tank 3.

[0051] In some embodiments, in the sealing system of the liquid storage tank 3, the design of the convex ring 3111 and the flow guide 3112 of the sealing plug 311 achieves the dual functions of sealing reliability and smooth flow. The convex ring 3111 ensures a tight seal for the discharge nozzle 308 when it is not in operation, preventing impurities from entering and liquid from evaporating.

[0052] The flow guide 3112 guides the flow of the thawing fluid as it flows in, preventing splashing or residue. Together, they ensure the cleanliness and collection efficiency of the thawing fluid in the storage tank 3.

[0053] The convex ring 3111 is the core structure of the sealing plug 311 to achieve static sealing. By closely fitting with the inner wall of the liquid storage tank 3, it blocks the connection between the discharge nozzle 308 and the outside world, creating a closed and clean environment inside the liquid storage tank 3.

[0054] When the guide tube 102 is inserted and pushes the sealing plug 311 downward, the convex ring 3111 moves synchronously with the sealing plug 311. At this time, the guide section 3112 guides the defrosting liquid to flow smoothly into the storage tank 3. The guide section 3112 is conical or funnel-shaped. The outer diameter of the guide section 3112 matches the inner diameter of the discharge nozzle 308, ensuring that it can be completely embedded inside the discharge nozzle 308.

[0055] During non-working periods or when the guide tube 102 on the freezing tank 1 is detached from the discharge nozzle 308, the sealing plug 311 is pushed upward by the elastic element 313 and returns to its original position. At this time, the convex ring 3111 fits tightly against the inner wall of the top surface of the liquid storage tank 3 and completely covers the discharge nozzle 308. The guide part 3112 is embedded inside the discharge nozzle 308, and the liquid storage tank 3 is in a closed state.

[0056] See appendix Figure 5 -Appendix Figure 6 The convex ring 3111 is fixedly provided with multiple push rods 312 extending away from the direction of gravity. The extrusion boss 3081 is provided with a through lifting cavity 310, and the push rods 312 are slidably disposed in the lifting cavity 310. Multiple elastic elements 313 are connected to the convex ring 3111. One end of the elastic element 313 away from the direction of gravity is connected to the inner wall of the liquid storage tank 3 on the side away from the direction of gravity. The sealing plug 311 is movably connected to the liquid storage tank 3 through the elastic element 313.

[0057] In some embodiments, based on the existing structure of the sealing plug 311, the newly added push rod 312 and elastic element 313, through the combined design of guide limiting and elastic reset, solve the displacement deviation and reset reliability problems of the sealing plug 311 during the opening and closing process, and further enhance the coordination accuracy between the sealing plug 311 and the feed nozzle 308.

[0058] In some embodiments, the push rod 312 is a precision guide assembly for the sealing plug 311. Through sliding engagement with the lifting cavity 310 on the extrusion boss 3081, it limits the displacement trajectory of the sealing plug 311, preventing the sealing plug 311 from tilting or shifting during vertical movement, and ensuring that the convex ring 3111 and the guide portion 3112 are always in the preset working position. The push rod 312 adopts a cylindrical rod body with a diameter that precisely matches the inner diameter of the lifting cavity 310. Its length extending out of the discharge nozzle 308 is slightly greater than the maximum travel of the sealing plug 311, thereby ensuring that the sealing plug 311 is fully open.

[0059] In some embodiments, the elastic element 313 is the power source for the automatic reset of the sealing plug 311. It provides a continuous upward pulling force through its own elastic deformation, ensuring that the sealing plug 311 can be quickly and accurately reset after the guide tube 102 is pulled out. At the same time, it provides a stable sealing pressure for the convex ring 3111, enhancing the sealing performance in the non-working state.

[0060] The tension of the elastic element 313 needs to be moderate and controllable. It should be greater than the weight of the sealing plug 311 itself to ensure that the sealing plug 311 can be quickly reset after the guide tube 102 is pulled out, and less than the thrust when the guide tube 102 is inserted to ensure that the guide tube 102 can easily push the sealing plug 311 down to open, avoiding difficulty in insertion due to excessive elasticity.

[0061] During the non-feeding stage or in a non-working state, the elastic element 313 is in a slightly stretched state. The tension pulls the sealing plug 311 upwards to reset it, and the convex ring 3111 tightly adheres to the inner wall of the top surface of the storage tank 3, completely sealing the discharge nozzle 308. At this time, the push rod 312 extends out of the discharge nozzle 308 under the tension of the elastic element 313. When the guide tube 102 is inserted into the discharge nozzle 308, its end pushes the sealing plug 311 downwards, further stretching the elastic element 313 and storing elastic potential energy. The push rod 312 slides synchronously downwards along the inner wall of the lifting cavity 310. When the sealing plug 311 moves to the preset position, the defrosting fluid flows smoothly into the storage tank 3 through the guide section 3112.

[0062] After thawing, the guide tube 102 is pulled out. At this time, the elastic element 313 releases its elastic potential energy, pulling the sealing plug 311 upward to reset. The push rod 312 also slides upward synchronously along the lifting cavity 310. When the convex ring 3111 re-adheres to the inner wall of the top surface of the liquid storage tank 3, the sealing plug 311 is completely reset, the push rod 312 returns to its initial state, and the discharge nozzle 308 is resealed.

[0063] See appendix Figure 1 -Appendix Figure 2 A first control valve 103 is installed on the guide pipe 102, and a discharge pipe 303 is provided on the liquid storage tank 3. A second control valve 304 is installed on the discharge pipe 303.

[0064] In some embodiments, the first control valve 103 is the first control gate between the freezing tank 1 and the storage tank 3, and is directly related to the inflow status of the single tank of thawing liquid.

[0065] The first control valve 103 preferably uses a manual / electric dual-purpose ball valve or a shut-off valve. The ball valve has a simple structure and opens and closes quickly, making it suitable for rapidly controlling the flow of thawing fluid. The shut-off valve has a flow regulation function; by rotating the valve stem to change the valve core opening, the flow rate of thawing fluid can be precisely controlled. Both are suitable for food-grade applications, preventing contamination of the thawing fluid.

[0066] In some embodiments, the second control valve 304 is the main gate for supplying liquid from the storage tank 3 to the outside, and is directly associated with the process of conveying the thawing liquid from the storage tank 3 to the subsequent fermentation equipment.

[0067] The second control valve 304 is fixedly installed on the discharge pipe 303 at the bottom or lower side wall of the liquid storage tank 3, near the outlet end of the liquid storage tank 3, for easy connection with subsequent liquid supply pipelines. A flow sensor is usually equipped next to the valve body, which is electrically connected to the control panel 307 to monitor the liquid supply flow in real time. At the same time, the valve body adopts a low temperature resistant design to adapt to the low temperature environment of 1℃-8℃ inside the liquid storage tank 3, avoiding hardening of the seals or valve body jamming caused by low temperature.

[0068] See appendix Figure 1 The liquid storage tank 3 is equipped with an observation window 305, which is made of transparent material and has scale lines 306 on its outer wall.

[0069] In some embodiments, the observation window 305 serves as a visualization window for the internal state of the storage tank 3. Its transparent material design breaks the airtightness of the tank, allowing operators to directly observe the real-time state of the thawed liquid without opening the lid, thus avoiding problems such as temperature fluctuations and contamination caused by frequent opening. If the thawed fermentation liquid exhibits quality problems such as turbidity, stratification, or floating impurities due to improper sealing or abnormal thawing, these issues can be directly detected through the observation window 305.

[0070] The graduation lines 306 are directly fabricated on the outer surface of the observation window 305 using laser etching or high-temperature baking printing. The graduation lines 306 are clear, wear-resistant, and maintain legibility even after long-term use. The graduation lines 306 extend from the lowest visible liquid level to the highest safe liquid level in the observation window 305, ensuring coverage of the entire normal range of liquid level changes.

[0071] See appendix Figure 1 and attached Figure 4 The liquid storage tank 3 is equipped with a control panel 307, and multiple rollers 302 are movably installed on the liquid storage tank 3.

[0072] In some embodiments, the display area of ​​the control panel 307 adopts a high-definition LCD screen to display key data in real time. The control panel 307 is connected to sensors inside the liquid storage tank 3, such as temperature sensors, liquid level sensors, and flow sensors, to collect and display core data in real time, making it convenient for operators to grasp the thawing status and avoid frequent manual opening of the lid for inspection.

[0073] Operators can directly set the target temperature of the liquid storage tank 3 through the panel. The control system will automatically start the heating / cooling module to stabilize the temperature within the target range, without the need for manual adjustment of external temperature control equipment.

[0074] In some embodiments, the liquid storage tank 3 needs to carry a large amount of thawing fluid, and the weight of the full tank can reach hundreds of kilograms, which is difficult to push manually. The roller 302 replaces sliding friction with rolling friction, which can easily realize the movement and positioning of the liquid storage tank 3 and adapt to the complex layout adjustment needs of the workshop.

[0075] Rollers 302 are symmetrically installed at the four bottom corners of the liquid storage tank 3 to ensure that the liquid storage tank 3 is balanced and prevents tilting. The design of rollers 302 allows a single operator to easily adjust the liquid storage tank 3 to the target position by simply pushing it, without relying on large equipment such as forklifts, thus improving space utilization and layout flexibility.

[0076] See appendix Figure 1 -Appendix Figure 3 A handle 101 is provided on the outer wall of the freezing drum 1, and a handle 206 is provided on the movable plate 203.

[0077] In some embodiments, during operation, handles 101 are symmetrically arranged on the upper part of the outer wall of the freezing container 1, usually in groups of two, in a horizontally symmetrical distribution. After freezing, the outer wall of the freezing container 1 is prone to frost and slipping, and the full load weight is large. The handles 101 provide operators with a stable gripping point, avoiding the container from tipping over due to slipping during handling, and reducing the risk of fermentation liquid leakage and personnel collisions.

[0078] Since the device requires the freezing drum 1 to be placed upside down on the moving plate 203, the handle 101 can be used as an inverted positioning aid. The operator can precisely control the posture of the drum through the handle 101 to ensure that the bottom guide tube 102 can be stably aligned with the limit seat 205 of the moving plate 203. There is no need to hold the bottom of the drum by hand, avoiding contact with the frosting area and improving the operating efficiency.

[0079] In some embodiments, a handle 206 is disposed on the edge of the movable plate 203, and the grip area can be wrapped with non-slip rubber to improve holding comfort. The core function of the movable plate 203 is to align the freezing tank 1 with the discharge nozzle 308 of the liquid storage tank 3, and the handle 206 provides the operator with a force-saving point of application. By pushing the handle 206, the horizontal position of the movable plate 203 can be slowly adjusted to ensure that the guide tube 102 of each freezing tank can be accurately inserted into the corresponding discharge nozzle 308.

[0080] If the movable plate 203 carries multiple freezer drums 1, the total weight is large. Directly pushing the edge of the plate can easily lead to uneven force. The design of the handle 206 allows the operator to apply force evenly with both hands, reducing friction when pushing and reducing physical exertion. It is especially suitable for repeated sliding operations when frequently changing freezer drums 1.

[0081] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0082] The above embodiments merely illustrate several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A thawing device for frozen fermentation broth, characterized in that, include: Multiple freezing containers (1) are used to store the frozen fermentation broth; A storage tank (3) is located on the side of the plurality of freezing barrels (1) facing the direction of gravity, and is used to store the fermentation liquid after thawing; The unloading rack (2) is movably mounted on the side of the liquid storage tank (3) away from the direction of gravity, and multiple freezing barrels (1) are mounted on the unloading rack (2); The freezing tank (1) includes a guide pipe (102), the unloading rack (2) includes a lifting frame (201) and a moving plate (203), the moving plate (203) is slidably disposed in the lifting frame (201), and multiple freezing tanks (1) are disposed on the moving plate (203); the liquid storage tank (3) is provided with multiple unloading nozzles (308) on the side facing the freezing tank (1), and multiple sealing plugs (311) corresponding to the multiple unloading nozzles (308) are movably installed on the inner wall of the liquid storage tank (3) on the side away from the direction of gravity. In the corresponding sealing plug (311) and discharge nozzle (308), the sealing plug (311) is used to intermittently seal the discharge nozzle (308); when the guide tube (102) is inserted into the corresponding discharge nozzle (308), the sealing plug (311) is opened and the guide tube (102) is connected to the interior of the liquid storage tank (3).

2. The defrosting device according to claim 1, characterized in that, The lifting frame (201) has a sliding groove (202) inside, and the moving plate (203) is provided with a slide rail (204). The slide rail (204) is slidably disposed in the sliding groove (202), and the moving plate (203) is slidably disposed on the lifting frame (201) through the slide rail (204). And / or, the movable plate (203) is provided with a plurality of limiting seats (205) corresponding to a plurality of freezing barrels (1), and in the corresponding limiting seat (205) and freezing barrel (1), the freezing barrel (1) is inverted on the limiting seat (205).

3. The defrosting device according to claim 1 or 2, characterized in that, The defrosting device includes multiple cylinders (301), all of which are mounted on the liquid storage tank (3), and the output ends of the multiple cylinders (301) are connected to the lifting frame (201); Multiple freezing barrels (1) are movably disposed on the side of the liquid storage tank (3) away from the direction of gravity via multiple cylinders (301).

4. The defrosting device according to claim 1 or 2, characterized in that, The discharge nozzle (308) includes an extrusion boss (3081) and a sealing boss (3082). The extrusion boss (3081) is used to fit against the outer wall of the guide pipe (102) on the side facing the liquid storage tank (3). The sealing boss (3082) and the extrusion boss (3081) have a height difference in the direction of gravity. The sealing boss (3082) is used to seal the joint between the guide tube (102) and the extrusion boss (3081). The extrusion boss (3081) has multiple magnetic plates (309) installed on the outer wall of the side facing the freezing barrel (1).

5. The defrosting device according to claim 4, characterized in that, The sealing plug (311) includes a convex ring (3111) and a flow guide (3112), the convex ring (3111) being used to fit against the inner wall of the liquid storage tank (3) on the side opposite to the direction of gravity; The guide section (3112) is movably disposed inside the feed nozzle (308) and is used to guide the thawed fermentation liquid into the storage tank (3).

6. The defrosting device according to claim 5, characterized in that, A plurality of push rods (312) extending away from the direction of gravity are fixedly provided on the convex ring (3111), and a through lifting cavity (310) is provided on the extrusion boss (3081), and the push rods (312) are slidably disposed in the lifting cavity (310). And / or, a plurality of elastic elements (313) are connected to the convex ring (3111), and one end of the elastic element (313) facing away from the direction of gravity is connected to the inner wall of the liquid storage tank (3) on the side facing away from the direction of gravity; the sealing plug (311) is movably connected to the liquid storage tank (3) through the elastic element (313).

7. The defrosting device according to claim 1 or 2, characterized in that, A first control valve (103) is installed on the guide pipe (102); And / or, the liquid storage tank (3) is provided with a discharge pipe (303), and a second control valve (304) is installed on the discharge pipe (303).

8. The defrosting device according to claim 1 or 2, characterized in that, The liquid storage tank (3) is provided with an observation window (305), which is made of transparent material and has scale lines (306) on its outer wall.

9. The defrosting apparatus according to claim 1 or 2, characterized in that, The liquid storage tank (3) is equipped with a control panel (307); And / or, a plurality of rollers (302) are movably mounted on the liquid storage tank (3).

10. The defrosting apparatus according to claim 1 or 2, characterized in that, A handle (101) is provided on the outer wall of the freezing container (1). And / or, the movable plate (203) is provided with a handle (206).

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