Feeding structure capable of automatically adjusting flow and fermentation tank

Abstract

The invention provides an automatic flow adjusting feeding structure and a fermentation tank, the automatic flow adjusting feeding structure comprises a solid feeding structure, a rotary dissolving structure and a liquid inlet structure, the rotary dissolving structure comprises an impeller and a stirring mechanism, the impeller is arranged in a liquid inlet cavity, and a solvent entering from a liquid inlet is used for driving the impeller to rotate; the stirring mechanism is arranged in the mixing chamber, the impeller and the stirring mechanism are coaxially arranged, and a hollow channel is formed in the rotating shaft, so that the pressure in the liquid inlet cavity is effectively adjusted through shunting, damage to equipment caused by too high pressure is avoided, the turbulent flow effect in the mixing chamber is further enhanced by utilizing the sprayed solvent, and superposition is formed with the stirring effect of the stirring strips; the overall dissolving effect is obviously improved.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of fermentation, and particularly relates to an automatic flow adjusting feeding structure and a fermentation tank. BACKGROUND

[0002] In the industrial production process of the fermentation tank, the feeding structure is the core link of material conveying and regulation, and its performance directly affects the stability of the fermentation system and the product quality. The current mainstream feeding structure of the fermentation tank adopts a single pipeline or a simple shunt design, and in actual operation, a series of technical problems are often faced. When conveying liquid materials, due to the lack of precise flow dynamic regulation mechanism, the problem of excessive liquid flow is prone to occur, and the excessive liquid forms a high instantaneous pressure in the pipeline, which not only causes the flow output to present significant volatility, making it difficult to maintain a stable feeding rate, but also causes adverse effects on the subsequent material mixing link.

[0003] Especially crucial is that in the fermentation tank system using solid-liquid separate feeding, abnormal flow of liquid materials will directly interfere with the solid feeding unit. When the liquid flow is too large or the pressure rises suddenly, the high-speed flowing liquid is easy to break through the preset material separation boundary and impact reversely into the solid box, forming a strong scouring to the solid particles or powder materials stored therein. Such impact not only destroys the physical form of the solid materials, causing particle breakage and powder caking, affecting the accurate metering and uniform feeding of the solid materials, but also may cause local concentration abnormalities due to the early mixing of solid and liquid, interfering with the normal progress of the fermentation reaction. At the same time, the excessive pressure of the liquid feeding will make the pipeline and the connection bear a load beyond the design range, which is easy to cause liquid overflow, resulting in material waste, equipment pollution, and even production safety hazards, seriously restricting the continuity and efficiency of fermentation production. Therefore, in view of the problems of insufficient flow and pressure regulation, mutual interference of solid and liquid feeding, and liquid overflow existing in the current feeding structure, it is urgent to develop a new feeding structure capable of realizing precise regulation and stable conveying.

[0004] In view of this, the present application is proposed. SUMMARY

[0005] The technical problem to be solved by the present application is to overcome the deficiencies of the prior art, and to provide an automatic flow adjusting feeding structure and a fermentation tank. The present application aims to solve the problems of insufficient flow and pressure regulation, mutual interference of solid and liquid feeding, uneven dissolution, and excessive energy consumption existing in the prior art feeding structure, and to realize the purpose of automatically adjusting the flow and pressure of the solvent in the feeding structure, uniform dissolution, and reducing energy consumption.

[0006] To solve the above technical problems and achieve the above application purposes, the technical solutions adopted by the present application are as follows: The application discloses an automatic flow-adjusting feeding structure, which comprises a solid feeding unit, a rotating dissolving structure and a liquid feeding structure, wherein the solid feeding unit is composed of a storage box and a mixing chamber.

[0007] In the embodiment of the application, an ultrasonic oscillator is arranged at the bottom of the mixing chamber.

[0008] In the embodiment of the application, the bottom of the mixing chamber is designed as an inclined surface, and the liquid discharge port is arranged at the lowest position of the inclined surface.

[0009] In the embodiment of the application, the liquid discharge port is arranged at the bottom of the mixing chamber and away from the stirring structure.

[0010] In the embodiment of the application, the liquid discharge port is provided with a valve for controlling the opening and closing of the liquid discharge port.

[0011] In the embodiment of the application, the rotating dissolving structure comprises an impeller and a stirring mechanism, the impeller is arranged in the liquid feeding cavity and is driven to rotate by the solvent entering through the liquid inlet, the stirring mechanism is arranged in the mixing chamber, the impeller and the stirring mechanism are coaxially arranged, and under the driving of the solvent, the impeller and the stirring mechanism rotate synchronously, the stirring mechanism stirs the mixture in the mixing chamber, and the fluid energy of the solvent flowing in through the liquid inlet directly drives the impeller to rotate.

[0012] In the embodiment of the application, the impeller comprises a rotating shaft and a plurality of blades, the rotating shaft is vertically arranged on the bottom wall of the liquid feeding cavity and simultaneously serves as the rotating shaft of the stirring mechanism. The blade has a first blade segment and a second blade segment, the first blade segment is arranged close to the rotating shaft and is recessed in the forward direction of the rotating direction, the contact area with the solvent is increased, the fluid energy is efficiently recovered, and the rotating speed of the impeller is improved; the first blade segment is arranged in the downward direction and is inclined in the rotating direction, and water flow is effectively intercepted at the rear side of the first blade segment. The second blade segment is arranged outside the first blade segment and is arranged in the upward direction and is inclined in the rotating direction.

[0013] In the embodiment of the application, the first blade segment and the second blade segment are integrally injection molded.

[0014] In the embodiment of the application, the highest point of the impeller is higher than the highest point of the liquid inlet.

[0015] In the embodiment of the present application, the hollow channel is arranged inside the rotating shaft, the overflow inlet is arranged at one end of the rotating shaft close to the impeller, the stirring mechanism is provided with an overflow outlet, and the other end of the hollow channel is connected with the overflow outlet of the stirring mechanism. When the flow of the solvent flowing into the inlet is too large, the liquid level in the inlet chamber rises, the solvent completely submerges the impeller, and part of the solvent enters the hollow channel through the overflow inlet and flows into the mixing chamber through the overflow outlet.

[0016] In the embodiment of the present application, the stirring mechanism comprises a stirring shell and stirring strips. The stirring strips are arranged on the surface of the stirring shell, and the overflow outlet is arranged on the outer surface of the stirring shell. The overflow outlet is provided with a plurality of overflow outlets arranged alternately with the stirring strips.

[0017] When the flow of the solvent flowing into the inlet is too large, the rotating and dissolving structure has a double synergistic effect: part of the solvent continues to drive the impeller and the stirring mechanism to keep rotating and stirring, and the other part of the excess solvent enters the hollow channel through the overflow inlet of the rotating shaft and is finally sprayed out from the plurality of overflow outlets on the surface of the stirring shell.

[0018] In the embodiment of the present application, the stirring strips protrude outward around the outer periphery of the stirring shell to form a spiral shape. The stirring strips and the stirring shell are integrally injection molded. The stirring strips can be spiral stirring strips.

[0019] In the embodiment of the present application, a plurality of stirring strips protruding radially are arranged on the outer periphery of the stirring shell.

[0020] In the embodiment of the present application, the inlet structure is assembled at the top of the feeding structure, and an independent inlet chamber is formed in the internal structure. An inlet port is arranged on the inlet chamber, and the inlet port is connected with an external liquid conveying system. In order to accurately control the solvent conveying process, an inlet valve is arranged at the inlet port, and the opening and closing operation of the valve can effectively control the on-off state of the inlet port. The inlet port is arranged on the side wall of the inlet chamber, and the specific position is set at 2 / 3 height from the bottom of the chamber. A liquid outlet opening downward is arranged on the side of the inlet chamber away from the inlet port, and the liquid outlet is in communication with the solid particle feeding structure.

[0021] In the embodiment of the present application, the inlet structure further comprises a movable liquid baffle arranged at the liquid outlet. The liquid baffle can adaptively adjust the opening degree of the liquid outlet according to the change of the liquid pressure in the inlet chamber. The working principle is that the position change of the liquid baffle is driven by the pressure impact of the solvent in the inlet chamber, and the dynamic adjustment of the opening degree of the liquid outlet is realized by changing the relative position relationship between the liquid baffle and the liquid outlet.

[0022] In the embodiment of the present application, the liquid baffle is designed in an integrated structure, which is composed of a horizontal plate and a vertical plate. The horizontal plate is used to cover the liquid outlet, and an opening with the same size as the liquid outlet is arranged on the horizontal plate. The vertical plate is arranged in a perpendicular state with the horizontal plate. When the liquid baffle is displaced, the opening on the horizontal plate and the liquid outlet will be in a coincident or staggered state, and the opening degree of the liquid outlet can be accurately adjusted by changing the relative position of the opening and the liquid outlet. In particular, the vertical plate is arranged opposite to the liquid inlet, and when the solvent is sprayed from the liquid inlet, the vertical plate will be directly impacted by the solvent, and the impact force will drive the liquid baffle to move as a whole, thereby completing the power transmission of the opening degree adjustment.

[0023] In the embodiment of the present application, a limiting structure is arranged at the top of the liquid inlet cavity. The limiting structure can strictly limit the movement track of the vertical plate, so that the vertical plate can only move linearly in the horizontal direction, and the adjustment accuracy of the liquid baffle can be avoided to be affected by the displacement of the vertical plate in other directions.

[0024] In the embodiment of the present application, a reset structure is arranged on the side of the vertical plate away from the liquid inlet. The reset structure is installed between the vertical plate and the inner wall of the liquid inlet cavity, and the function of the reset structure is to provide a reset driving force for the liquid baffle when the impact of the solvent is weakened or disappeared, so as to promote the liquid baffle to accurately return to the initial position. When the solvent flow of the liquid inlet increases and the impact force increases, the vertical plate drives the liquid baffle to move by overcoming the force of the reset structure, so as to realize the reduction of the opening degree of the liquid outlet. When the solvent flow decreases and the impact force decreases, the reset structure pushes the vertical plate to move in the opposite direction, so that the liquid baffle is reset to increase the opening degree of the liquid outlet.

[0025] In the embodiment of the present application, the reset structure is a spring structure.

[0026] In the embodiment of the present application, the liquid inlet cavity further comprises a first flow channel and a second flow channel. One end of the first flow channel is communicated with the liquid inlet, and the other end is vertically connected with the second flow channel. A pressure distribution hole communicated with the mixing chamber is arranged at the end of the second flow channel. The extension direction of the vertical plate of the liquid baffle is parallel to the running direction of the second flow channel. In the initial state, the liquid baffle is in the reference position, the opening of the horizontal plate is completely coincident with the liquid outlet, and the liquid outlet maintains the maximum opening degree. At this time, the first flow channel and the second flow channel are in a blocked state, and the solvent flows into the storage tank through the liquid outlet. This is suitable for the working condition that the pressure in the liquid inlet cavity is normal. When the pressure in the liquid inlet cavity increases, the impact force of the solvent pushes the vertical plate to drive the liquid baffle to move, so that the overlapping area of the opening and the liquid outlet gradually decreases, and the opening degree of the liquid outlet is reduced. Through this linear adjustment, the solvent flow into the storage tank can be reduced in real time, and the system pressure balance can be maintained. If the pressure in the liquid inlet cavity continues to rise to a critical value, the liquid baffle will move to the limit position. At this time, the vertical plate is completely separated from the sealing of the connection between the first flow channel and the second flow channel, so that the two flow channels form a passage. Part of the solvent continues to flow into the storage tank through the reduced liquid outlet, and the other part is introduced into the second flow channel and directly delivered to the mixing chamber through the pressure distribution hole.

[0027] When the pressure in the liquid inlet cavity falls, the liquid baffle gradually resets under the action of the reset structure: first, the second flow channel is closed, and the flow is terminated; then the liquid outlet opening is increased until the initial state is restored.

[0028] Compared with the prior art, the present application has the following significant technical progress by adopting the above technical means: 1. In the present application, by setting a movable liquid baffle in the liquid inlet cavity, the position of the liquid baffle is adjusted by the solvent impact in the liquid inlet cavity, achieving the purpose of adjusting the opening of the liquid inlet according to the pressure change of the solvent in the liquid inlet cavity, and further achieving the significant technical progress of automatically adjusting the flow and pressure of the solvent in the feed structure.

[0029] 2. In the present application, by setting a hollow channel in the rotating dissolution structure, the pressure in the liquid inlet cavity is effectively adjusted by the flow division, avoiding damage to the equipment caused by excessive pressure, and the turbulent flow effect inside the mixing chamber is further enhanced by the ejected solvent, forming a superposition with the stirring effect of the stirring bar, significantly improving the overall dissolution effect.

[0030] 3. In the present application, by setting a first flow channel, a second flow channel, and a pressure division hole in the liquid inlet cavity, the solvent flow into the storage tank can be reduced in real time by linear adjustment, maintaining the pressure balance of the system. When the pressure in the liquid inlet cavity continuously rises to a critical value, the position of the liquid baffle will automatically connect the first flow channel and the second flow channel, and the solvent can be automatically divided to the pressure division hole, avoiding system overload.

[0031] In an embodiment of the present application, a fermentation tank includes any of the automatic flow regulating feed structures described above.

[0032] At the same time, the present application has simple structure, remarkable effect, and is suitable for popularization and use.

[0033] The specific embodiments of the present application will be described in further detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0034] Figure 1 The figure is a schematic diagram of the feed structure in the embodiment of the present application; Figure 2 The figure is a schematic diagram of the solid feed unit structure in the embodiment of the present application; Figure 3 The figure is a schematic diagram of the rotating dissolution structure in the embodiment of the present application; Figure 4 The figure is a schematic diagram of the impeller bottom structure in the embodiment of the present application Figure 5 The figure is a schematic diagram of the impeller upper structure in the embodiment of the present application; Figure 6 The figure is a schematic diagram of the impeller internal structure in the embodiment of the present application; Figure 7 Fig. 1 is a schematic diagram of the liquid inlet structure in an embodiment of the present application; Figure 8 Fig. 2 is a schematic diagram of the flow distribution hole in an embodiment of the present application; Figure 9 Fig. 3 is a schematic diagram of the liquid blocking plate structure in an embodiment of the present application; Fig. 4 is a schematic diagram of the main components in an embodiment of the present application; 100, automatically regulated flow feeding structure 11, storage tank 12, mixing chamber; 121, ultrasonic oscillator; 122, liquid outlet 13, handle 21, impeller 211, rotating shaft; 2111, hollow channel; 2112, overflow liquid inlet; 2113, overflow liquid outlet 212, blade; 2121, first blade segment; 2122, second blade segment 221, stirring shell; 222, stirring strip 31, liquid inlet cavity; 311, first flow channel; 312, second flow channel; 3121, flow distribution hole 32, liquid inlet 33, liquid outlet 34, liquid blocking plate; 341, horizontal plate; 342, vertical plate 35, reset structure DETAILED DESCRIPTION

[0035] The preferred embodiments of the present application will be described below with reference to the accompanying drawings. Those skilled in the art will understand that these embodiments are only used to explain the technical principles of the present application, and are not used to limit the protection scope of the present application. For example, although the components in the drawings are drawn in a certain proportional relationship, this proportional relationship is not fixed, and those skilled in the art can adjust it as needed to adapt to specific application occasions, and the adjusted technical solution will still fall within the protection scope of the present application.

[0036] It should be noted that in the description of the present application, the terms indicating the direction or positional relationship of the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the direction or positional relationship shown in the drawings, which is only for the convenience of description, and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0037] Moreover, it needs to be explained that in the description of the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting" should be understood in a broad sense, for example, can be fixed connection, can also be detachable connection, or integrally connected, can be mechanical connection, can also be electrical connection, can be directly connected, can also be indirectly connected through intermediate medium, can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0038] As shown in Figures 1-2 The feeding structure 100 includes a solid feeding unit, a rotating dissolving structure and a liquid feeding structure. The solid feeding unit is composed of a storage box 11 and a mixing chamber 12. The storage box 11 serves as a solid material storage unit and can accommodate fermentation raw materials such as glucose powder, starch particles, peptone particles and calcium carbonate particles. The storage box 11 is designed as a pull-out box and can be conveniently pulled out of the feeding structure by a handle 13 for supplementing solid materials as needed. The side of the storage box 11 opposite to the handle 13 is designed in an open manner (without a baffle) to facilitate the flushing of the materials by the solvent delivered by the liquid feeding structure, so that the materials can smoothly enter the mixing chamber 12 for dissolution and finally be delivered to the fermentation tank through a liquid outlet 122. The rotating dissolving structure is driven to operate by the power of the solvent itself to stir the materials in the mixing chamber 12 and strengthen the solid-liquid mixing effect. The liquid feeding structure has a flow self-adaptive adjusting function and can dynamically control the flow according to the input amount of the solvent to ensure the stability and controllability of the feeding process.

[0039] In the embodiment of the present application, an ultrasonic oscillator 121 is arranged at the bottom of the mixing chamber 12. The high-frequency vibration of the ultrasonic wave can accelerate the dispersion and dissolution of the solid particles and significantly improve the dissolution rate and uniformity of the materials, thereby providing a high-quality raw material substrate for the subsequent fermentation process.

[0040] In the embodiment of the present application, the bottom of the mixing chamber 12 is designed in an inclined slope, and the liquid outlet 122 is arranged at the lowest part of the inclined slope. This structural layout utilizes the principle of gravity guidance to guide the mixed solution in the mixing chamber 12 to flow naturally along the inclined slope to the low part and finally gather at the liquid outlet 122 for discharge. This design can ensure that the mixed solution is completely discharged under the action of its own gravity, effectively avoiding the residue of the solution in the mixing chamber 12, ensuring the integrity of the material delivery, reducing the cross-contamination risk between different batches of materials, and simplifying the cleaning and maintenance process of the mixing chamber. When used in cooperation with the ultrasonic oscillator, the inclined bottom surface can also enhance the disturbance effect during the flow of the solution, further improving the dissolution uniformity.

[0041] In this embodiment of the invention, the drain outlet 122 is located at the bottom of the mixing chamber 12 and on the side away from the stirring mechanism. When the stirring mechanism stirs and dissolves the material in the mixing chamber, the drain outlet 122, which is away from the stirring area, can reduce the direct impact of the strong stirring flow on the draining process, prevent undissolved solid particles from being carried away by the turbulence and discharged directly, and ensure that the material entering the fermenter achieves the expected degree of dissolution uniformity.

[0042] In this embodiment of the invention, the drain port 122 is equipped with a valve to control the opening and closing of the drain port.

[0043] like Figure 3 As shown in the embodiment of the invention, the rotary dissolving structure includes an impeller 21 and a stirring mechanism. The impeller 21 is disposed in the liquid inlet chamber 31, and the solvent entering through the liquid inlet 32 ​​drives the impeller 21 to rotate. The stirring mechanism is disposed in the mixing chamber 12, and the impeller 21 and the stirring mechanism are coaxially arranged. Driven by the solvent, the impeller 21 and the stirring mechanism rotate synchronously. The stirring mechanism stirs the mixture in the mixing chamber 12. The kinetic energy of the solvent fluid flowing in through the liquid inlet 32 ​​directly drives the impeller 21 to rotate. In this process, the fluid kinetic energy of the solvent is directly converted into the rotational kinetic energy of the impeller 21 and the stirring mechanism. No additional power device such as a motor is required, realizing the automatic recovery and conversion of fluid energy and effectively reducing the energy consumption of the equipment operation.

[0044] like Figure 4 As shown in the embodiment of the invention, the impeller 21 includes a rotating shaft 211 and multiple blades 212. The rotating shaft 211 is vertically disposed on the bottom wall of the liquid inlet chamber 31, and the rotating shaft 211 also serves as the rotating shaft of the stirring mechanism. The blades 212 have a first blade segment 2121 and a second blade segment 2122. The first blade segment 2121 is disposed close to the rotating shaft 211 and is concave forward along the rotation direction. By increasing the contact area with the solvent, efficient recovery of fluid energy can be achieved, thereby increasing the impeller speed. The first blade segment 2121 is inclined in the downward direction along the rotation direction, which can effectively intercept water flow behind the first blade segment 2121, further improving the fluid energy recovery efficiency. The second blade segment 2122 is disposed outside the first blade segment 2121 and is inclined in the upward direction along the rotation direction. This structural design can increase the contact area between the impeller 21 and the solvent, further improving the energy recovery efficiency and increasing the impeller speed.

[0045] In this embodiment of the invention, the highest point of the impeller 21 is higher than the highest point of the liquid inlet 32.

[0046] like Figure 5As shown, in the embodiment of the present application, the rotating shaft 211 is internally provided with a hollow passage 2111, the rotating shaft is provided with an overflow liquid inlet 2112 at one end close to the impeller 21, the stirring mechanism is provided with an overflow liquid outlet 2113, and the other end of the hollow passage 2111 is connected with the overflow liquid outlet 2113 of the stirring mechanism. When the flow of the solvent flowing into the liquid inlet 32 is too large, the liquid level in the liquid inlet cavity 31 rises, and the solvent will completely immerse the impeller 21, at this time, part of the solvent enters the hollow passage 2111 through the overflow liquid inlet 2112, and flows into the mixing chamber 12 through the overflow liquid outlet 2113. This overflow structure can effectively shunt the excess solvent, avoid the pressure in the liquid inlet cavity 31 being too high, play a role in adjusting the pressure in the liquid inlet cavity, and at the same time, reduce the impact of the excessive flow on the impeller 21, realize the protection of the impeller, and prolong the service life of the equipment.

[0047] As shown in the drawings, Figure 6 As shown, in the embodiment of the present application, the stirring mechanism includes a stirring shell 221 and a stirring strip 222. The stirring strip 222 is arranged on the surface of the stirring shell 221, the overflow liquid outlet 2113 is arranged on the outer surface of the stirring shell 221, and the overflow liquid outlet 2113 is arranged in multiple and alternately arranged with the stirring strip 222. When the impeller 21 rotates under the drive of the solvent, the stirring shell 221 is synchronously driven to rotate by the rotating shaft 211, at this time, the stirring strip 222 fixed on the surface of the stirring shell rotates at a high speed together with the stirring shell. The stirring strip 222 continuously stirs the mixture in the mixing chamber 12 in the rotating process, significantly improves the contact frequency of the solvent and the solute, effectively enhances the fluidity of the inside of the mixing chamber, and further optimizes the dissolution efficiency.

[0048] When the flow of the solvent flowing into the liquid inlet 32 is too large, the rotating dissolution structure has a double synergistic effect: part of the solvent continues to drive the impeller 21 and the stirring mechanism to keep rotating and stirring, and the other part of the excess solvent enters the hollow passage 2111 through the overflow liquid inlet 2112 of the rotating shaft 211, and is finally sprayed out from the multiple overflow liquid outlets 2113 on the surface of the stirring shell 221. The water spraying structure in the rotating state makes the overflow solvent spread to all directions under the action of centrifugal force, which not only effectively adjusts the pressure in the liquid inlet cavity 31 by shunting, avoids damage to the equipment caused by too high pressure, but also further enhances the turbulent effect in the inside of the mixing chamber by using the sprayed solvent, and forms superposition with the stirring effect of the stirring strip, which significantly improves the overall dissolution effect.

[0049] In the embodiment of the present application, the stirring strip 222 is arranged to protrude outward around the outer periphery of the stirring shell 221, forming a spiral shape. The stirring strip 222 and the stirring shell 221 are integrally injection molded. The stirring strip 222 can be a stirring strip with a spiral shape.

[0050] The stirring shell 221 is provided with a plurality of radially protruding stirring strips 222.

[0051] As shown in the drawings, Figure 7 The liquid inlet structure is assembled at the top of the feeding structure 100, and an independent liquid inlet cavity 31 is formed in the internal structure. A liquid inlet port 32 is arranged on the liquid inlet cavity 31, and the liquid inlet port 32 is connected with an external liquid conveying system, so that deionized water, buffer solution and other solvents can be stably conveyed into the liquid inlet cavity 31. In order to accurately control the solvent conveying process, a liquid inlet valve is arranged at the liquid inlet port 32, and the opening and closing operation of the valve can effectively control the on-off state of the liquid inlet port 32. The liquid inlet port 32 is arranged on the side wall of the liquid inlet cavity 31, and is specifically arranged at a position 2 / 3 of the height from the bottom of the cavity; on the side of the liquid inlet cavity 31 away from the liquid inlet port 32, a liquid outlet port 33 opening downward is arranged, and the liquid outlet port 33 is in communication with the feeding structure. Through this structural design, the solvents entering the liquid inlet cavity 31 from the liquid inlet port 32 can flow into the storage box 11 through the liquid outlet port 33, and the solid substances in the storage box 11 are guided into the mixing chamber 12 by the scouring action of the solvents, and then the dissolution process is completed under the action of the rotating dissolution structure, and finally the dissolved materials are conveyed to the fermentation tank through the liquid outlet port 122.

[0052] As shown in the drawings, Figure 8 In the embodiment of the present application, the liquid inlet structure further comprises a movable liquid baffle 34 arranged at the liquid outlet port 33. The liquid baffle 34 can adaptively adjust the opening degree of the liquid outlet port 33 according to the liquid pressure change in the liquid inlet cavity 31. The working principle is as follows: the position of the liquid baffle 34 is changed by the pressure impact of the solvents in the liquid inlet cavity 31, and the relative position relationship between the liquid baffle 34 and the liquid outlet port 33 is changed, so that the opening degree of the liquid outlet port 33 is dynamically adjusted. This design can effectively control the solvent pressure entering the mixing chamber 12, and finally achieve the technical effect of stabilizing the solvent flow, which provides reliable guarantee for the subsequent dissolution and material conveying process.

[0053] As shown in the drawings, Figure 9As shown, in the embodiment of the present application, the liquid baffle plate 34 adopts an integrated structure design, which is composed of a horizontal plate 341 and a vertical plate 342. The horizontal plate 341 is used to cover the liquid outlet 33, and an opening matching the size of the liquid outlet 33 is arranged on the horizontal plate 341; the vertical plate 342 is arranged in a perpendicular state with the horizontal plate 341. When the liquid baffle plate 34 is displaced, the opening on the horizontal plate 341 and the liquid outlet 33 will form a coincident or staggered state, and the opening degree of the liquid outlet 33 is adjusted accurately by the change of the relative position of the two. In particular, the vertical plate 342 is arranged opposite to the liquid inlet 32, and when the solvent is sprayed from the liquid inlet 32, it will directly impact the vertical plate 342, and the impact force drives the overall movement of the liquid baffle plate 34, thereby completing the power transmission of the opening degree adjustment. The structure design directly drives the adjustment component by fluid power, and the flow self-adaptive control can be realized without additional power device, which simplifies the structure and improves the adjustment response speed.

[0054] In the embodiment of the present application, a limiting structure is arranged at the top of the liquid inlet cavity 31. The limiting structure can strictly limit the movement track of the vertical plate 342, and ensure that it can only move linearly in the horizontal direction, avoiding affecting the adjustment accuracy of the liquid baffle plate 34 due to the displacement of the vertical plate 342 in other directions. By eliminating the redundant displacement in the non-horizontal direction, the vertical plate 342 can accurately respond to the impact force of the solvent and the action force of the reset structure 35, and the opening on the horizontal plate 341 and the liquid outlet 33 can always maintain the preset relative position relationship, thereby improving the reliability and control accuracy of the entire flow adjustment mechanism.

[0055] In the embodiment of the present application, the reset structure 35 is arranged on the side of the vertical plate 342 away from the liquid inlet 32. The reset structure 35 is installed between the vertical plate 342 and the inner wall of the liquid inlet cavity 31, and its function is to provide a reset driving force for the liquid baffle plate 34 when the impact of the solvent is weakened or disappeared, so as to promote the liquid baffle plate 34 to accurately return to the initial position. When the solvent flow of the liquid inlet 32 increases and the impact force increases, the vertical plate 342 drives the liquid baffle plate 34 to move by overcoming the action force of the reset structure 35, thereby reducing the opening degree of the liquid outlet 33; when the solvent flow decreases and the impact force decreases, the reset structure 35 pushes the vertical plate 342 to move reversely, so that the liquid baffle plate 34 is reset to increase the opening degree of the liquid outlet 33. Through this automatic adjustment mechanism, the stability and adjustment accuracy of the liquid outlet flow are further improved.

[0056] In the embodiment of the present application, the reset structure 35 is a spring structure.

[0057] In the embodiment of the present application, the liquid inlet cavity 31 further comprises a first flow channel 311 and a second flow channel 312. One end of the first flow channel 311 is in communication with the liquid inlet 32, and the other end is in perpendicular connection with the second flow channel 312. A shunt hole 3121 is arranged at the end of the second flow channel 312. The extension direction of the vertical plate 342 of the liquid blocking plate 34 is parallel to the running direction of the second flow channel 312. In the initial state, the liquid blocking plate 34 is in the reference position, the opening of the horizontal plate 341 is completely overlapped with the liquid outlet 33, and the liquid outlet 33 keeps the maximum opening. At this time, the first flow channel 311 and the second flow channel 312 are in the blocked state, and all the solvent flows into the storage tank 11 through the liquid outlet 33, which is suitable for the normal working condition of the pressure in the liquid inlet cavity 31. When the pressure in the liquid inlet cavity 31 increases, the solvent impact force pushes the vertical plate 342 to drive the liquid blocking plate 34 to move, so that the overlapping area of the opening and the liquid outlet 33 gradually decreases, and the opening degree of the liquid outlet 33 is reduced accordingly. Through this linear adjustment, the solvent flow into the storage tank 11 can be reduced in real time, and the system pressure balance can be maintained. If the pressure in the liquid inlet cavity 31 continues to rise to a critical value, the liquid blocking plate 34 will move to the limit position. At this time, the vertical plate 342 completely separates from the blocking of the connection between the first flow channel 311 and the second flow channel 312, so that the two flow channels form a passage. Part of the solvent continues to flow into the storage tank 11 through the reduced liquid outlet 33, and the other part is introduced into the second flow channel 312 and directly delivered to the mixing chamber 12 through the shunt hole 3121. This shunt design can quickly release the excessive pressure and avoid system overload.

[0058] When the pressure in the liquid inlet cavity 31 falls, the liquid blocking plate 34 is gradually reset under the action of the reset structure 35: first, the second flow channel 312 is closed to stop the shunt; then the opening degree of the liquid outlet 33 is increased until the initial state is restored. Through the multi-stage response mechanism of "full flow passage-limited flow adjustment-shunt pressure relief-reset recovery", dynamic and accurate control of the solvent flow is realized, which not only ensures stable liquid supply under normal working conditions, but also realizes safety protection under extreme pressure, significantly improving the adaptability and reliability of the system.

[0059] In the embodiment of the present application, the present application provides a fermentation tank, which comprises any of the above-mentioned feeding structures.

[0060] The above description is only a preferred embodiment of the present application, and does not limit the present application in any form. Although the present application has been disclosed as above with a preferred embodiment, it is not intended to limit the present application. Any skilled person in the art can make some changes or modifications to the above-mentioned technical content without departing from the scope of the technical solution of the present application, and equivalent embodiments with equivalent changes are equivalent. Any simple modification, equivalent change and modification of the above-mentioned embodiments according to the technical essence of the present application are still within the scope of the present application.

Claims

1. An automatically regulated flow feed structure, characterized by, The device comprises a solid feeding unit, a rotating dissolving structure and a liquid feeding structure; the solid feeding unit comprises a storage box and a mixing chamber; the storage box is a pull-out box body for storing solid substances, one side of which is provided with a handle, and the opposite side is an open structure; the rotating dissolving structure can stir the solution in the mixing chamber under the driving of the solvent; the liquid feeding structure can realize self-adaptive flow control according to the flow of the solvent, and the solvent delivered by the liquid feeding structure can flush the solid substances in the storage box into the mixing chamber and then be delivered to the fermentation tank through the liquid outlet of the mixing chamber. The rotating dissolving structure comprises an impeller and a stirring mechanism; the impeller is arranged in the liquid feeding cavity of the liquid feeding structure and can be driven to rotate by the solvent entering through the liquid inlet; the stirring mechanism is arranged in the mixing chamber, and the impeller and the stirring mechanism are coaxially arranged; under the driving of the solvent, the impeller and the stirring mechanism rotate synchronously, and the stirring mechanism stirs the mixture in the mixing chamber; the fluid kinetic energy of the solvent flowing in through the liquid inlet directly drives the impeller to rotate, and the fluid kinetic energy of the solvent is converted into the rotational kinetic energy of the impeller and the stirring mechanism.

2. An automatically regulated flow feed structure according to claim 1, wherein, The impeller comprises a rotating shaft and a plurality of blades; the rotating shaft is vertically arranged on the bottom wall of the liquid feeding cavity, and the rotating shaft also serves as the rotating shaft of the stirring mechanism; the blades have first blade segments and second blade segments; the first blade segments are arranged close to the rotating shaft and are recessed forward in the rotation direction; the first blade segments are arranged in the downward direction and inclined in the rotation direction; the second blade segments are arranged outside the first blade segments and are arranged in the upward direction and inclined in the rotation direction.

3. An automatically regulated flow feed structure according to claim 2, wherein, The rotating shaft is internally provided with a hollow channel; one end of the rotating shaft close to the impeller is provided with an overflow liquid inlet; the stirring mechanism is provided with an overflow liquid outlet; one end of the hollow channel is in communication with the overflow liquid inlet, and the other end is connected with the overflow liquid outlet; when the flow of the solvent flowing in through the liquid inlet is too large to cause the liquid level in the liquid feeding cavity to rise and completely immerse the impeller, part of the solvent can enter the hollow channel through the overflow liquid inlet and flow into the mixing chamber through the overflow liquid outlet.

4. An automatically regulated flow feed structure according to claim 3, wherein, The stirring mechanism comprises a shell and stirring strips; the stirring strips are arranged on the surface of the shell; the overflow liquid outlet is arranged on the outer surface of the shell, and the overflow liquid outlet is provided with a plurality of overflow liquid outlets arranged alternately with the stirring strips.

5. An automatically regulated flow feed structure according to claim 4, wherein, The stirring strips are arranged protruding outward around the outer periphery of the shell to form a spiral shape.

6. An automatically regulated flow feed structure according to claim 5, wherein, The stirring strips and the shell are integrally injection molded.

7. An automatically regulated flow feed structure according to claim 6, wherein, The highest point of the impeller is higher than the highest point of the liquid inlet.

8. An automatically regulated flow feed structure according to claim 7, wherein, The bottom of the mixing chamber is provided with an ultrasonic oscillator.

9. An automatically regulated flow feed structure according to claim 8, wherein, The first blade segments and the second blade segments are integrally injection molded.

10. A fermenter characterised in that: The automatic flow adjusting feeding structure of any one of claims 1-9 is installed.

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