Red oil closed fermentation thermostat tank with ultrasonic generator

Abstract

This invention discloses a sealed, constant-temperature fermentation tank for red oil with an ultrasonic generator, relating to the field of fermentation brewing vessel technology. It includes a brewing vessel, an assembly component installed on one side of the brewing vessel, and a bell jar inverted and submerged below the sealed liquid surface inside the assembly component. An adjustable counterweight unit is installed on the outside of the bell jar to adjust its overall weight. A pipe assembly is sealed between the brewing vessel and the assembly component, with one end connected to the interior of the brewing vessel and the other end extending vertically upwards into the bell jar. The upward displacement of the bell jar is quantitatively controlled by the amount of gas injected through the pipe assembly. By setting the assembly component and bell jar outside the brewing vessel, when gas is generated inside the brewing vessel, the gas can enter the bell jar through the pipe assembly. After the bell jar floats in the liquid, it can collect the gas inside the brewing vessel. When the brewing vessel discharges material, the gas inside the bell jar can be injected back into the brewing vessel to assist in discharging material from the bottom.

Description

Technical Field

[0001] This invention relates to the field of fermentation temperature control tank technology, and in particular to a closed constant temperature fermentation tank for red oil with an ultrasonic generator. Background Technology

[0002] In the field of red oil fermentation production, traditional fermentation equipment mostly uses open or semi-open fermentation tanks, which maintain the fermentation environment through artificial temperature control. Although some advanced equipment has achieved closed constant temperature fermentation, it only has basic temperature control and tank sealing functions. Such equipment usually relies on natural venting or simple valve pressure relief to balance the pressure inside the tank. The discharge process mostly adopts gravity flow or single pump extraction mode. After fermentation, the red oil is directly discharged through the bottom discharge port. For fermentation products with high viscosity or high solid content, external force is required to help clear the pipeline.

[0003] During the closed-loop, constant-temperature fermentation process, the microbial metabolism in the red oil continuously produces gases such as carbon dioxide. The passive pressure relief method of traditional equipment cannot match the gas generation rate in real time. When the microorganisms enter the logarithmic growth phase, the gas production increases explosively. If the exhaust valve is not adjusted in time, the pressure inside the tank will rise sharply in a short period of time. On the one hand, this leads to local stress concentration in the tank body. Long-term repeated pressure fluctuations will cause fatigue deformation of the metal tank body, and in severe cases, it will cause bulging or even explosion, posing a great threat to production safety. Moreover, the red oil after fermentation is rich in fermentation metabolites and incompletely decomposed solids, and its viscosity is significantly higher than that of ordinary oils. The traditional gravity discharge method is difficult to overcome the flow resistance of high-viscosity fluids, resulting in slow discharge speed and high residue. If a pump is used for forced extraction, solids are easy to accumulate in pipe bends, valves and other parts, causing pipe blockage. Therefore, a closed-loop, constant-temperature fermentation tank for red oil with an ultrasonic generator is proposed to solve or alleviate the above problems. Summary of the Invention

[0004] The purpose of this invention is to provide a sealed, constant-temperature fermentation tank for red oil with an ultrasonic generator, in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a sealed, temperature-controlled fermentation tank for red oil with an ultrasonic generator, comprising:

[0006] A warm brewing vessel, wherein a material discharge port is provided at the bottom of the warm brewing vessel;

[0007] The assembly consists of a component and a bell jar. The assembly is installed on one side of the brewing vessel. The bell jar is inverted and submerged below the sealed liquid level inside the assembly. The bell jar slides vertically up and down inside the assembly. The change in the volume of the sealed liquid displaced by the bell jar corresponds linearly to the buoyancy it experiences. A counterweight unit is adjustable on the outside of the bell jar to adjust its overall weight. A serrated opening is provided around the bottom perimeter of the bell jar, with part of the serrated opening protruding from the liquid surface, allowing gas exceeding the capacity of the bell jar to escape into the assembly through the serrated opening.

[0008] The pipe assembly is sealed between the brewing vessel and the assembly components. One end of the pipe assembly is connected to the interior of the brewing vessel, and the other end extends vertically upward into the interior of the bell jar. The upward displacement of the bell jar is quantitatively controlled by the amount of gas injected by the pipe assembly. By dynamically balancing the gas pressure inside the bell jar with the external liquid seal pressure, constant pressure exhaust and gas collection of the brewing vessel are achieved. When the gas inside the bell jar is transported to the interior of the brewing vessel through the pipe assembly, pressure compensation is performed on the brewing vessel to assist in material discharge.

[0009] Preferably, the assembly components include:

[0010] A storage tank is installed on one side of the brewing vessel and stores a sealing liquid for liquid sealing. A bell jar is vertically slidably disposed inside the storage tank, with its outer wall fitting with the inner wall of the storage tank.

[0011] The base is horizontally fixedly installed at the bottom of the storage box. When the bottom of the bell jar is in contact with the upper surface of the base, the bell jar is in its initial position. The base has a through-ventilation channel inside to connect the pipe assembly with the inside of the bell jar.

[0012] The guide post and guide sleeve are provided. The guide post is vertically fixed to the inner side wall of the storage box, and the guide sleeve is fixedly connected to the outer side wall of the bell jar. The guide sleeve is slidably sleeved on the outside of the guide post to guide the vertical lifting and lowering movement of the bell jar.

[0013] Preferably, the assembly component further includes:

[0014] A damping plate is fixedly connected to the outer wall of the guide sleeve, and its outer surface is in contact with the inner wall of the storage box. It is used to provide frictional resistance for the lifting and lowering movement of the bell jar. When the buoyancy of the gas inside the bell jar is balanced with the overall weight of the bell jar, the bell jar is driven to rise after overcoming the frictional resistance of the damping plate.

[0015] A limiting post is vertically fixedly installed on the top outer side of the bell jar. When the bell jar rises to the highest preset position, the top of the limiting post flexibly contacts the top of the inner wall of the storage box to mechanically limit the rising stroke of the bell jar.

[0016] A gas filtration unit is detachably installed on the top of the storage tank and is used to perform bidirectional filtration of the gas entering and leaving the storage tank.

[0017] Preferably, the air filtration unit includes:

[0018] A threaded seat is fixedly connected to the top of the storage box, and the top of the storage box has a vent hole that communicates with the inside of the threaded seat.

[0019] The mounting sleeve is screwed into the inside of the threaded seat via a threaded structure, and a sealed connection is formed between the mounting sleeve and the threaded seat;

[0020] An air filter element and a filter screen are fixedly installed inside an installation sleeve. The air filter element is located below the filter screen. The installation sleeve wraps and restrains the air filter element and the filter screen. By rotating the installation sleeve, the entire unit can be removed from the threaded seat, enabling the replacement and maintenance of the air filter element and the filter screen.

[0021] Preferably, the counterweight unit includes:

[0022] A counterweight base is fixedly installed on the outer wall of the bell jar, and its installation position corresponds to the corner of the inner cavity of the storage box.

[0023] The card holder is fixedly connected at equal intervals to the inner sidewall of the counterweight seat, forming multiple horizontally arranged carding stations;

[0024] The counterweight module is horizontally attached to the inside of the counterweight base via a mounting bracket. The thickness and height of the counterweight modules inside the counterweight base are the same. The counterweight modules at the end of the counterweight base away from the bell are standard unit blocks. The width of subsequent counterweight modules increases by the width of one unit block in the direction towards the bell, thereby achieving a step-by-step adjustment of the counterweight weight.

[0025] Preferably, the pipe assembly includes:

[0026] A connecting pipe, one end of which is sealed and installed on the top of the brewing pot, and the other end of which is sealed and installed on the bottom of one side of the storage box, is used to connect the brewing pot with the ventilation channel inside the base.

[0027] The vertical tube is fixedly installed on the top of the base. Its bottom end is connected to the connecting tube through the ventilation channel inside the base, and its top end is vertically inserted into the inside of the bell jar. A restraint frame is fixedly connected to the top of the base to provide rigid support and fixation for the vertical tube.

[0028] Preferably, the pipe assembly further includes a flow-limiting component, which is disposed at the top joint of the bell and the vertical pipe. When the bell descends to the initial position, the flow-limiting component squeezes and seals the top opening of the vertical pipe, blocking the gas passage between the brewing vessel and the interior of the assembly component.

[0029] Preferably, the current limiting component includes:

[0030] The outer convex chamber is integrally formed in the center of the top of the bell jar, forming a gas residue storage space inside. The top end of the vertical tube extends into the interior of the outer convex chamber, so that the opening at the top end of the vertical tube is located above the sealing liquid surface inside the bell jar.

[0031] A sealing seat, which is fixedly installed at the top opening of the vertical pipe;

[0032] The sealing head is located inside the convex cavity. When the bottom of the bell jar is fully attached to the base, the bottom of the sealing head is pressed against the top sealing plane of the sealing seat to seal the opening at the top of the vertical pipe. When the bell jar floats upward, the bell jar drives the sealing head to rise, causing the sealing head to separate from the sealing seat and opening the gas passage between the vertical pipe and the inside of the bell jar.

[0033] Preferably, the current limiting component further includes:

[0034] A connector is horizontally slidably disposed inside the convex cavity, and the connector is fixedly connected to the top of the sealing head;

[0035] A spring is vertically positioned between the top of the connector and the top of the inner wall of the convex chamber, providing a downward elastic compressive force to the connector, causing the sealing head to tend to fit against the sealing seat. When the gas pressure inside the brewing vessel is greater than the elastic compressive force of the spring, the gas pushes the sealing head upward, causing the sealing head to separate from the sealing seat.

[0036] Preferably, the flow-limiting component further includes a fixing block and a guide rod. The fixing block is fixedly installed on the inner side wall of the convex chamber, and the guide rod is vertically fixedly installed between the fixing blocks. The outer wall of the guide rod is slidably inserted and sleeved with the connector to guide the vertical sliding of the connector, so that the sealing head and the sealing seat are coaxially connected.

[0037] The technical effects and advantages of this invention are as follows:

[0038] (1) The present invention sets up an assembly component and a bell jar outside the brewing pot, and the bell jar is immersed in the liquid inside the assembly component. When gas is generated inside the brewing pot, the gas can enter the bell jar through the pipe assembly. After the bell jar floats in the liquid, the gas inside the brewing pot can be collected at constant pressure. When the brewing pot discharges material, the gas inside the bell jar can be injected back into the brewing pot to assist the brewing pot in discharging material from the bottom.

[0039] (2) The present invention utilizes the combined use of a bell jar, a counterweight unit, and a flow-limiting component. The counterweight unit can adjust the weight of the bell jar, thereby changing the buoyancy required when the bell jar floats, and thus changing the limitation of the bell jar on the internal pressure of the brewing vessel. When the bell jar descends and gas is reversely transported to the brewing vessel through the pipe assembly, the bell jar descends to its original position, which can seal the top of the vertical pipe with the flow-limiting component. This makes it easier for the brewing vessel to discharge material, so that the inside of the brewing vessel is under negative pressure, thereby causing the vertical pipe to siphon, thus preventing the liquid inside the assembled components from flowing into the inside of the brewing vessel. Attached Figure Description

[0040] 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, but do not constitute a limitation thereof. In the drawings:

[0041] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0042] Figure 2 This is a schematic diagram of the overall structure of the storage box of the present invention;

[0043] Figure 3 This is a schematic diagram of the internal structure of the storage box of the present invention.

[0044] Figure 4 This is a top-view schematic diagram of the internal structure of the storage box of the present invention;

[0045] Figure 5 This is a schematic diagram of the internal structure of the externally convex cavity of the present invention.

[0046] Figure 6 This is a schematic diagram of the top view of the counterweight seat structure of the present invention;

[0047] Figure 7 This is a schematic diagram of the internal structure of the mounting sleeve of the present invention.

[0048] In the attached diagram: 1. Brewing vessel; 21. Storage box; 22. Base; 23. Guide post; 24. Guide sleeve; 25. Damping plate; 26. Limiting post; 27. Air filtration unit; 271. Threaded seat; 272. Mounting sleeve; 273. Air filter element; 274. Filter screen; 3. Bell jar; 4. Pipe assembly; 41. Connecting pipe; 42. Vertical pipe; 43. Restraint frame; 44. Flow limiting component; 441. Outwardly protruding chamber; 442. Sealing head; 443. Sealing seat; 444. Connector; 445. Spring; 446. Fixing block; 447. Guide rod; 51. Counterweight seat; 52. Card seat; 53. Counterweight module. Detailed Implementation

[0049] The technical solutions of 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. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0050] This invention provides, for example Figures 1-7 The diagram shows a closed-loop fermentation thermostatic tank for red oil with an ultrasonic generator. It includes a fermentation vessel 1 with a material discharge port at its bottom. Opening the valve at the discharge port controls the discharge of the red oil material inside the fermentation vessel 1. An ultrasonic generator is installed inside the fermentation vessel 1, with its transmitter facing the center of the vessel. This ultrasonic generator provides ultrasonic-assisted treatment to the fermentation material, promoting mixing and fermentation. A thermostatic jacket is installed on the outer wall of the fermentation vessel 1, through which a temperature-controlled heat exchange medium flows. This heat exchange precisely maintains the fermentation temperature inside the fermentation vessel 1. An insulation layer is installed on the outer side of the thermostatic jacket to reduce heat loss and improve temperature control accuracy. The fermentation vessel 1 is also equipped with a stirrer to agitate the red oil material inside. The closed-loop design of the fermentation vessel 1 prevents the red oil material from contacting external gases during fermentation.

[0051] The assembly consists of a bell jar 3 and a tubular assembly 4. The assembly is installed on one side of the fermentation vessel 1. The bell jar 3 is inverted and submerged below the sealed liquid inside the assembly. The main gaseous components produced during the red oil fermentation process are carbon dioxide, nitrogen, and oxygen. The sealed liquid inside the assembly does not mix with the gases produced during red oil fermentation; that is, the sealed liquid can be an edible-grade glycerol solution. It does not mix with the main gases produced during red oil fermentation, and the edible-grade glycerol solution will not affect the quality of red oil fermentation inside the fermentation vessel 1. The bell jar 3 slides vertically up and down inside the assembly. The change in the volume of the sealed liquid displaced by the bell jar 3 corresponds linearly to the buoyancy it experiences. That is, when the buoyancy exerted by the gas inside the bell jar 3 on the bell jar 3 is less than the total weight of the bell jar 3, the change in the volume of the sealed liquid displaced by the bell jar 3 corresponds linearly to the buoyancy it experiences. When the buoyancy exerted by the gas inside the bell jar 3 on the bell jar 3 equals the total weight of the bell jar 3, part of the bell jar 3 rises and floats on the sealed liquid inside the assembly. As the air inside the bell jar 3 increases, the area of ​​the bell jar 3 floating on the sealed liquid increases, but the bell jar 3... The total weight remains constant, meaning the buoyancy of the gas inside bell 3 remains constant, and the gas pressure inside bell 3 remains constant. Therefore, the maximum gas pressure inside the brewing vessel 1 can be adjusted based on the total weight of bell 3. A counterweight unit is adjustable on the outside of bell 3 to adjust the overall weight of bell 3, thereby regulating the maximum gas pressure inside brewing vessel 1. A serrated opening is provided around the bottom perimeter of bell 3, with the serrated opening partially exposed above the liquid surface, allowing gas exceeding the capacity of bell 3 to escape into the assembled components through the serrated opening. Group 4 is sealed between the brewing vessel 1 and the assembly components. One end of it is connected to the inside of the brewing vessel 1, and the other end extends vertically upward into the inside of the bell jar 3. The upward displacement of the bell jar 3 is quantitatively controlled by the amount of gas injected by the pipe group 4. By dynamically balancing the gas pressure inside the bell jar 3 with the external liquid seal pressure, constant pressure exhaust and gas collection of the brewing vessel 1 are achieved. When the gas inside the bell jar 3 is transported to the inside of the brewing vessel 1 through the pipe group 4, pressure compensation is performed on the brewing vessel 1 to assist in material discharge, thereby improving the convenience of material discharge from the brewing vessel 1.

[0052] Furthermore, the assembly components include a storage tank 21, a base 22, a guide post 23, and a guide sleeve 24. The storage tank 21 is installed on one side of the brewing vessel 1, i.e., the storage tank 21 is installed via a base. The storage tank 21 stores a sealing liquid for liquid sealing, and the liquid level of the sealing liquid inside the storage tank 21 is slightly higher than the top of the bell jar 3 in its initial position, thus submerging the bell jar 3. When the buoyancy of the gas inside the bell jar 3 is greater than the weight of the bell jar 3, part of the bell jar 3 can float on the sealing liquid, and when the bell jar 3 rises to its highest point, the bottom of the bell jar 3 is also immersed in the sealing liquid. The bell jar 3 is vertically slidably mounted on the storage tank 21. Inside the bell jar 3, its outer wall is fitted with the inner wall of the storage box 21 with a clearance. The base 22 is horizontally fixedly installed at the bottom inside the storage box 21. When the bottom of the bell jar 3 is in contact with the upper surface of the base 22, the bell jar 3 is in its initial position. At this time, the bell jar 3 is completely immersed in the sealing oil inside the storage box 21. The base 22 has a through-type ventilation channel inside, which is used to connect the pipe assembly 4 and the inside of the bell jar 3. The guide post 23 is vertically fixedly installed on the inner side wall of the storage box 21. The guide sleeve 24 is fixedly connected to the outer side wall of the bell jar 3. The guide sleeve 24 is slidably sleeved on the outside of the guide post 23 to guide the vertical lifting and lowering movement of the bell jar 3. Figure 3 and Figure 4 As shown, the guide post 23 and guide sleeve 24 on the outside of the bell jar 3 can ensure the stability of the bell jar 3 sliding up and down inside the storage box 21.

[0053] Furthermore, the assembly also includes a damping plate 25, a limiting post 26, and a gas filtering unit 27. The damping plate 25 is fixedly connected to the outer wall of the guide sleeve 24, and its outer surface is in contact with the inner wall of the storage box 21. It is used to provide frictional resistance for the lifting and lowering movement of the bell jar 3. When the buoyancy of the gas inside the bell jar 3 is balanced with the overall weight of the bell jar 3, the additional frictional resistance of the damping plate 25 is overcome to drive the bell jar 3 to move upward. Moreover, the frictional resistance between the damping plate 25 and the inner wall of the storage box 21 is much less than the weight of the bell jar 3. Therefore, when the gas injected or discharged into the bell jar 3 reaches a force balance, the bell jar 3 is prevented from directly and rapidly floating or falling, thereby improving the stability of the bell jar 3 in its up-and-down movement inside the storage box 21. The limiting post... 26 is vertically fixed on the top outer side of the bell jar 3. When the bell jar 3 rises to the highest preset position, the top of the limiting post 26 flexibly contacts the top of the inner wall of the storage box 21 to mechanically limit the rising stroke of the bell jar 3. When the bell jar 3 reaches the highest position, the liquid level inside the bell jar 3 is located at the serrated opening at the bottom of the bell jar 3, thereby preventing the top of the limiting post 26 from contacting the top of the inner wall of the storage box 21 when the liquid inside the bell jar 3 has not been discharged, thus restricting the rise of the bell jar 3. As a result, when air enters the bell jar 3, the internal air pressure continues to increase. The air filter unit 27 is detachably installed on the top of the storage box 21 to perform bidirectional filtration of the gas entering and leaving the storage box 21, ensuring that the storage box 21 is less polluted by the outside air.

[0054] Specifically, the air filtration unit 27 includes a threaded seat 271, a mounting sleeve 272, an air filter element 273, and a filter screen 274. The threaded seat 271 is fixedly connected to the top of the storage box 21. The top of the storage box 21 has a vent hole communicating with the interior of the threaded seat 271. The mounting sleeve 272 is screwed into the interior of the threaded seat 271 via a threaded structure, forming a sealed connection between the mounting sleeve 272 and the threaded seat 271. The air filter element 273 and the filter screen 274 are both fixedly installed inside the mounting sleeve 272, with the air filter element 273 located below the filter screen 274. The mounting sleeve 272 wraps and binds the air filter element 273 and the filter screen 274. By rotating the mounting sleeve 272, the entire unit can be removed from the threaded seat 271, thus removing the air filter element 273. Replacement and maintenance of filter 73 and filter 274: Filter 274 uses stainless steel wire mesh as the base material, with a sintered polytetrafluoroethylene coating on the surface, forming a composite structure of metal support and corrosion-resistant coating. The mesh size is strictly controlled within 100±5μm, achieved through laser drilling to ensure smooth airflow. As the first-stage filtration unit, it effectively intercepts large particulate impurities such as dust, hair, and fibers in the air, protecting the downstream air filter element 273. Air filter element 273 is made of ultra-fine glass fiber and melt-blown polypropylene composite, with a filter layer thickness ≥5mm. It adopts a three-layer gradient density design of coarse, medium, and fine from the air inlet to the air outlet to improve dust holding capacity and filtration efficiency. It is bonded to the end plate with polyurethane adhesive, filtering 0.3μm particles and intercepting microbial spores in the air.

[0055] Specifically, the counterweight unit includes a counterweight base 51, a mounting bracket 52, and a counterweight module 53. The counterweight base 51 is fixedly installed on the outer wall of the bell jar 3, and its installation position corresponds to the corner of the inner cavity of the storage box 21. The mounting bracket 52 is equidistantly fixedly connected to the inner side wall of the counterweight base 51, forming multiple horizontally arranged mounting positions. The counterweight module 53 is horizontally mounted inside the counterweight base 51 through the mounting bracket 52. The thickness and height of the counterweight modules 53 inside the counterweight base 51 are the same. The counterweight modules 53 at the end of the inner cavity of the counterweight base 51 away from the bell jar 3 are standard unit blocks. The width of subsequent counterweight modules 53 increases by the width of one unit block in the direction towards the bell jar 3, realizing a step-wise adjustment of the counterweight weight. Figure 4 As shown, the counterweight seat 51 is installed at a position corresponding to the corner of the inner cavity of the storage box 21, which can improve the utilization efficiency of the internal space of the storage box 21. When all four counterweight seats 51 on the outside of the bell jar 3 are filled with counterweight modules 53, after all the liquid inside the bell jar 3 is discharged, the buoyancy of the gas inside the bell jar 3 in the sealing liquid is also greater than the total weight of the bell jar 3, thus avoiding the total weight of the bell jar 3 being too large, which would prevent the gas inside the bell jar 3 from being unable to push the bell jar 3 out of the sealing liquid.

[0056] Furthermore, the pipe assembly 4 includes a connecting pipe 41, a vertical pipe 42, and a flow-limiting component 44. One end of the connecting pipe 41 is sealed and installed on the top of the brewing vessel 1, and the other end of the connecting pipe 41 is sealed and installed on the bottom of one side of the storage box 21. The connecting pipe 41 is used to connect the brewing vessel 1 with the ventilation channel inside the base 22, and as... Figure 2 As shown, the connecting pipe 41 has a vertical section, which can prevent siphoning to a certain extent. A sealing bolt is installed at the bottom of the connecting pipe 41. When the brewing vessel 1 is shut down for maintenance and cleaning, the sealing bolt can be opened to drain any residual liquid inside the connecting pipe 41. The vertical pipe 42 is vertically fixed to the top of the base 22. The bottom end of the vertical pipe 42 is connected to the connecting pipe 41 through a venting channel inside the base 22. Figure 3 As shown, the top of the vertical tube 42 is vertically inserted into the inside of the bell jar 3. The top of the base 22 is fixedly connected to the restraint frame 43, which provides rigid support and fixation for the vertical tube 42 to ensure the stability of the installation. The flow limiting component 44 is set at the junction of the bell jar 3 and the top of the vertical tube 42. When the bell jar 3 descends to the initial position, the flow limiting component 44 squeezes and seals the top opening of the vertical tube 42, blocking the gas passage between the brewing kettle 1 and the inside of the assembly component, and preventing the liquid inside the bell jar 3 from being siphoned through the connecting pipe 41 and the vertical tube 42 when the brewing kettle 1 is discharging.

[0057] Specifically, the flow-limiting component 44 includes a convex chamber 441, a sealing seat 443, and a sealing head 442. The convex chamber 441 is integrally formed in the center of the top of the bell jar 3, forming a gas residue storage space inside. The top end of the vertical tube 42 extends into the interior of the convex chamber 441, so that the opening at the top end of the vertical tube 42 is positioned above the sealing liquid surface inside the bell jar 3. The sealing seat 443 is fixedly installed at the opening at the top end of the vertical tube 42. The sealing head 442 is disposed inside the convex chamber 441. When the bottom of the bell jar 3 is completely in contact with the base 22, the bottom of the sealing head 442 seals against the top of the sealing seat 443. The planar extrusion and bonding achieves a seal on the top opening of the vertical pipe 42. When the bell jar 3 floats upward, it drives the sealing head 442 to rise, causing the sealing head 442 to separate from the sealing seat 443, thus opening the gas passage between the vertical pipe 42 and the inside of the bell jar 3. That is, when the bell jar 3 is in the initial position, the bottom of the outer wall of the sealing head 442 seals the sealing seat 443. At this time, a small amount of gas remains at the top of the inner cavity of the bell jar 3, that is, the liquid level inside the bell jar 3 is below the top opening of the vertical pipe 42, to prevent the liquid inside the bell jar 3 from being siphoned through the connecting pipe 41 and the vertical pipe 42 when the brewing kettle 1 is discharging.

[0058] Furthermore, the flow-limiting component 44 also includes a connector 444, a spring 445, a fixing block 446, and a guide rod 447. The connector 444 is horizontally slidably disposed inside the convex cavity 441 and is fixedly connected to the top of the sealing head 442. The spring 445 is vertically disposed between the top of the connector 444 and the top of the inner wall of the convex cavity 441, providing a downward elastic compressive force to the connector 444, so that the sealing head 442 remains in contact with the sealing head 442. The tendency of the plug seat 443 to fit together: When the gas pressure inside the brewing vessel 1 is greater than the elastic compressive force of the spring 445, the gas pushes the plug head 442 upward, causing the plug head 442 to separate from the plug seat 443. Furthermore, the elastic force exerted by the spring 445 on the plug head 442 towards the plug seat 443 through the connector 444 is much less than the weight of the bell jar 3. Therefore, when gas is generated inside the brewing vessel 1, and the gas pressure inside the brewing vessel 1 does not reach the pressure exerted by the bell jar 3 on the gas inside the brewing vessel 1... Before the pressure limit threshold is reached, the gas inside the brewing vessel 1 can push up the sealing head 442 and discharge gas into the bell jar 3. The fixing block 446 is fixedly installed on the inner side wall of the convex chamber 441, and the guide rod 447 is vertically fixed between the fixing blocks 446. The outer wall of the guide rod 447 is slidably inserted and sleeved with the connector 444 to guide the vertical sliding of the connector 444, so that the sealing head 442 and the sealing seat 443 are coaxially connected. The fixing block 446 can also limit the connector 444. When the bell jar 3 rises, the bell jar 3 can drive the sealing head 442 to separate from the sealing seat 443 through the fixing block 446 and the connector 444. Thus, when the bell jar 3 injects gas into the brewing vessel 1 through the pipe group 4 to replenish pressure, and before the bell jar 3 has descended to the initial position, the sealing head 442 is separated from the sealing seat 443 to avoid affecting the bell jar 3 injecting gas into the brewing vessel 1 through the pipe group 4.

[0059] 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 alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A sealed, temperature-controlled fermentation tank for red oil with an ultrasonic generator, characterized in that: include: A warm brewing vessel (1) is provided with a material discharge port at its bottom; The assembly component and the bell jar (3) are installed on one side of the brewing vessel (1). The bell jar (3) is inverted and immersed below the sealed liquid surface inside the assembly component. The bell jar (3) slides up and down vertically inside the assembly component. The change in the volume of the sealed liquid displaced by the bell jar (3) corresponds linearly to the buoyancy it receives. A counterweight unit is adjustable on the outside of the bell jar (3) to adjust the overall weight of the bell jar (3). A serrated opening is provided at the bottom periphery of the bell jar (3). The serrated opening is partially exposed above the liquid surface, allowing gas exceeding the capacity of the bell jar (3) to escape into the assembly component through the serrated opening. The pipe assembly (4) is sealed between the brewing vessel (1) and the assembly components. One end of the pipe assembly (4) is connected to the interior of the brewing vessel (1), and the other end extends vertically upward into the interior of the bell jar (3). The upward displacement of the bell jar (3) is quantitatively controlled by the amount of gas injected by the pipe assembly (4). By dynamically balancing the gas pressure inside the bell jar (3) with the external liquid seal pressure, the constant pressure exhaust and gas collection of the brewing vessel (1) are achieved. When the gas inside the bell jar (3) is transported to the interior of the brewing vessel (1) through the pipe assembly (4), the brewing vessel (1) is pressure compensated and assisted in discharging.

2. The closed-loop fermentation constant-temperature tank for red oil with an ultrasonic generator according to claim 1, characterized in that: The assembly components include: Storage box (21), the storage box (21) is installed on one side of the brewing vessel (1), and the inside stores the sealing liquid for liquid sealing. The bell jar (3) is vertically slidably disposed inside the storage box (21), and its outer wall is fitted with the inner wall of the storage box (21) with a gap. The base (22) is horizontally fixedly installed at the bottom of the storage box (21). When the bottom of the bell jar (3) is in contact with the upper surface of the base (22), the bell jar (3) is in the initial position. The base (22) has a through-ventilation channel inside, which is used to connect the pipe group (4) and the inside of the bell jar (3). The guide post (23) and guide sleeve (24) are vertically fixedly installed on the inner side wall of the storage box (21) and the guide sleeve (24) is fixedly connected to the outer side wall of the bell jar (3). The guide sleeve (24) is slidably sleeved on the outside of the guide post (23) to guide the vertical lifting and lowering movement of the bell jar (3).

3. The closed fermentation constant temperature tank for red oil with an ultrasonic generator according to claim 2, characterized in that: The assembly component also includes: Damping plate (25), the damping plate (25) is fixedly connected to the outer side wall of the guide sleeve (24), and its outer surface is in contact with the inner wall of the storage box (21) to provide frictional resistance for the lifting and lowering movement of the bell jar (3). When the buoyancy of the gas inside the bell jar (3) is balanced with the overall weight of the bell jar (3), the bell jar (3) is driven to rise after overcoming the frictional resistance of the damping plate (25). Limiting post (26), the limiting post (26) is vertically fixed on the top outer side of the bell jar (3). When the bell jar (3) rises to the highest preset position, the top of the limiting post (26) flexibly contacts the top of the inner wall of the storage box (21) to mechanically limit the rising stroke of the bell jar (3). The gas filtration unit (27) is detachably installed on the top of the storage box (21) and is used to perform bidirectional filtration of the gas entering and leaving the storage box (21).

4. A sealed, constant-temperature fermentation tank for red oil with an ultrasonic generator according to claim 3, characterized in that: The air filtration unit (27) includes: A threaded seat (271) is fixedly connected to the top of the storage box (21), and the top of the storage box (21) is provided with a ventilation hole communicating with the inside of the threaded seat (271). The mounting sleeve (272) is screwed into the inside of the threaded seat (271) by a threaded structure, and a sealed connection is formed between the mounting sleeve (272) and the threaded seat (271); An air filter element (273) and a filter screen (274) are fixedly installed inside an installation sleeve (272). The air filter element (273) is located below the filter screen (274). The installation sleeve (272) wraps and binds the air filter element (273) and the filter screen (274). By rotating the installation sleeve (272), the entire unit can be removed from the threaded seat (271), thus enabling the replacement and maintenance of the air filter element (273) and the filter screen (274).

5. A sealed, constant-temperature fermentation tank for red oil with an ultrasonic generator according to claim 1, characterized in that: The counterweight unit includes: The counterweight (51) is fixedly installed on the outer wall of the bell jar (3), and its installation position corresponds to the corner of the inner cavity of the storage box (21); Card holder (52), the card holder (52) is fixedly connected at equal intervals to the inner side wall of the counterweight seat (51) to form multiple horizontally arranged carding stations; The counterweight module (53) is horizontally connected to the inside of the counterweight seat (51) via the mounting bracket (52). The thickness and height of the counterweight modules (53) inside the counterweight seat (51) are the same. The counterweight modules (53) at the end of the inner cavity of the counterweight seat (51) away from the bell jar (3) are standard unit blocks. The width of the subsequent counterweight modules (53) increases by the width of one unit block in the direction towards the bell jar (3) to achieve step adjustment of the counterweight weight.

6. A sealed, constant-temperature fermentation tank for red oil with an ultrasonic generator according to claim 2, characterized in that: The pipe assembly (4) includes: Connecting pipe (41), one end of which is sealed and installed on the top of the brewing pot (1), and the other end is sealed and installed on the bottom of the storage box (21) to connect the ventilation channel inside the brewing pot (1) and the base (22); The vertical tube (42) is vertically fixed on the top of the base (22). Its bottom end is connected to the connecting tube (41) through the ventilation channel inside the base (22), and its top end is vertically inserted into the inside of the bell jar (3). The top of the base (22) is fixedly connected to a restraint frame (43), which provides rigid support and fixation for the vertical tube (42).

7. A sealed, constant-temperature fermentation tank for red oil with an ultrasonic generator according to claim 6, characterized in that: The tube assembly (4) also includes a flow limiting component (44), which is located at the top joint of the bell jar (3) and the vertical tube (42). When the bell jar (3) descends to the initial position, the flow limiting component (44) squeezes and seals the top opening of the vertical tube (42), blocking the gas passage between the brewing kettle (1) and the assembly component.

8. A sealed, constant-temperature fermentation tank for red oil with an ultrasonic generator according to claim 7, characterized in that: The current limiting component (44) includes: The convex chamber (441) is integrally formed in the center of the top of the bell jar (3), forming a gas residue storage space inside. The top end of the vertical tube (42) extends into the interior of the convex chamber (441), so that the opening of the top end of the vertical tube (42) is located above the sealing liquid surface inside the bell jar (3). A sealing seat (443) is fixedly installed at the top opening of the vertical pipe (42); The sealing head (442) is located inside the convex cavity (441). When the bottom of the bell jar (3) is completely in contact with the base (22), the bottom of the sealing head (442) is pressed against the top sealing plane of the sealing seat (443) to seal the opening at the top of the vertical tube (42). When the bell jar (3) floats upward, the bell jar (3) drives the sealing head (442) to rise, causing the sealing head (442) to separate from the sealing seat (443) and opening the gas passage between the vertical tube (42) and the bell jar (3).

9. A sealed, constant-temperature fermentation tank for red oil with an ultrasonic generator according to claim 8, characterized in that: The current limiting component (44) also includes: A connector (444) is horizontally slidably disposed inside the convex cavity (441), and the connector (444) is fixedly connected to the top of the plug head (442); A spring (445) is vertically disposed between the top of the connector (444) and the top of the inner wall of the convex chamber (441), providing a downward elastic extrusion force to the connector (444), causing the sealing head (442) to tend to fit against the sealing seat (443). When the gas pressure inside the brewing vessel (1) is greater than the elastic extrusion force of the spring (445), the gas pushes the sealing head (442) upward, causing the sealing head (442) to separate from the sealing seat (443).

10. A sealed, constant-temperature fermentation tank for red oil with an ultrasonic generator according to claim 9, characterized in that: The flow limiting component (44) also includes a fixing block (446) and a guide rod (447). The fixing block (446) is fixedly installed on the inner side wall of the convex cavity (441). The guide rod (447) is vertically fixed between the fixing blocks (446). The outer wall of the guide rod (447) is slidably inserted and sleeved with the connector (444) to guide the vertical sliding of the connector (444) so ​​that the sealing head (442) and the sealing seat (443) are coaxially connected.

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