A multi-mode vacuum suction and intelligent flushing of the fermenter sampling port waste liquid treatment system

Abstract

The present application relates to a kind of multi-mode vacuum suction and intelligent flushing fermenter sampling port waste liquid processing system, its system includes: receiving flow guide component, configured to receive and guide flow, implement liquid level monitoring;Vacuum suction component, configured to generate suction driving force;Multi-medium flushing component, configured to provide multiple flushing medium, implement flow monitoring;Interlocking pressure stabilizing component, including waste liquid collection tank and vacuum buffer tank, waste liquid collection tank is configured to implement waste liquid temporary storage and tank pressure and liquid level monitoring, vacuum buffer tank is configured to coordinate suction output air pressure;Cooperative controller, configured to: dynamically allocate control resources, execute suction operation, synchronously interlock control waste liquid collection tank and vacuum buffer tank, and then start multi-medium flushing component to execute adaptive flushing work.

Description

Technical Field

[0001] This invention relates to the field of bio-fermentation technology, and in particular to a multi-mode vacuum suction and intelligent rinsing system for treating waste liquid from the sampling port of a fermenter. Background Technology

[0002] In bio-fermentation processes, the waste liquid treatment system at the sampling port is a crucial facility for ensuring a hygienic production environment. Currently, the commonly used gravity-flow discharge system, which relies on the weight of the waste liquid for fluid transport within pipelines, has several technical limitations:

[0003] On the one hand, under gravity-driven conditions, the fluid velocity is constrained by the vertical height difference of the pipeline, making it difficult to increase the medium velocity during discharge. Especially when treating high-viscosity fermentation waste liquid, the stagnant flow effect makes the waste liquid prone to forming continuous adhesion in the conical section of the sampling funnel and the transition zone of the pipeline, creating a material basis for microbial growth.

[0004] On the other hand, maintaining pipe cleanliness requires frequent manual flushing, which not only consumes a lot of manpower but also poses a risk of biological contamination due to liquid splashing during flushing. Furthermore, current manual flushing operations lack standardized control methods, especially in open operation scenarios where water jets can easily cause secondary pollution. These uncontrollable factors in the operation process also increase the potential risk of personnel coming into contact with contaminants. At the same time, traditional flushing methods require large amounts of water or disinfectant, making precise control on demand impossible and increasing the workload of wastewater treatment.

[0005] Due to the aforementioned technical deficiencies, existing gravity-fed wastewater treatment systems face severe challenges in terms of operational reliability, hygiene and safety, and resource utilization efficiency. In particular, in large-scale continuous production scenarios, there is an urgent need to develop new treatment solutions to overcome technical bottlenecks. Summary of the Invention

[0006] (a) Technical problems to be solved

[0007] In view of the above-mentioned shortcomings and deficiencies of the prior art, the present invention provides a fermenter sampling port waste liquid treatment system with multi-mode vacuum suction and intelligent flushing, which solves the technical problems of existing gravity-fed waste liquid treatment systems, which suffer from waste liquid adhesion and pollution due to insufficient flow rate, low efficiency and risk of secondary pollution caused by reliance on manual high-frequency flushing, and resource waste caused by the inability to adjust flushing parameters.

[0008] (II) Technical Solution

[0009] To achieve the above objectives, the main technical solutions adopted by the present invention include:

[0010] In a first aspect, embodiments of the present invention provide a multi-mode vacuum suction and intelligent rinsing fermenter sampling port waste liquid treatment system, comprising:

[0011] The receiving and diversion component is configured to receive and divert sampled waste liquid and flushing medium, and to implement liquid level monitoring;

[0012] The vacuum suction assembly is configured to generate a gradient-adjustable suction driving force;

[0013] The multi-media flushing assembly is configured to provide multiple flushing media and implement flow monitoring;

[0014] The interlocking pressure stabilizing assembly includes a waste liquid collection tank and a vacuum buffer tank. The waste liquid collection tank is configured to temporarily store waste liquid and monitor the pressure and liquid level inside the tank. The vacuum buffer tank is configured to coordinate the suction output pressure of the vacuum suction assembly.

[0015] The collaborative controller is configured to: respond to at least one input, including a liquid level over-limit signal, a timing signal, and a manual command, dynamically allocate control resources according to priority arbitration rules; control the vacuum suction component to perform suction operations, simultaneously discharge waste liquid from the waste liquid collection tank due to over-limit liquid level and / or compensate for vacuum pressure, and control the vacuum buffer tank to absorb pressure fluctuations based on the target vacuum level; after suction is completed, start the multi-media flushing component according to the preset media sequence to perform adaptive flushing work including media selection, stepless adjustment of injection pressure, and closed-loop control of media usage.

[0016] Optionally, the flow-guiding component includes:

[0017] The funnel assembly is made of corrosion-resistant material and has an inclined flow guide surface. The bottom inclined flow guide surface is sealed to the inlet end of the vacuum suction assembly.

[0018] The liquid level monitoring unit, installed on the funnel assembly, includes an ultrasonic liquid level gauge, a radar liquid level gauge, a differential pressure liquid level gauge, a tuning fork liquid level gauge, and a float liquid level gauge.

[0019] Optionally, the vacuum suction assembly includes:

[0020] The vacuum pipeline network, with a multi-branch topology, connects the flow outlet of the flow guiding component, the flushing medium injection end of the multi-media flushing component, the waste liquid input interface of the waste liquid collection tank, and the pressure balance port of the vacuum buffer tank, forming a closed-loop pressure control path.

[0021] Pressure control valve assembly, including:

[0022] The monitoring node valve is located at the connection between the flow outlet and the vacuum pipeline network and is configured to open during the suction phase to establish a waste liquid flow path.

[0023] A flushing medium isolation valve, located at the junction of the flushing medium injection end and the vacuum piping network, is configured to open during the flushing phase to establish a medium flow path.

[0024] The vacuum input valve of the waste liquid collection tank is located at the connection between the vacuum input interface of the waste liquid collection tank and the vacuum pipeline network. It is configured to: adjust the vacuum level of the waste liquid collection tank in response to the control command of the co-controller during the suction phase; and switch to the closed state during the flushing phase to isolate the connection path between the flushing medium and the vacuum buffer tank.

[0025] The waste liquid collection tank discharge valve is located at the waste sampling output end of the waste liquid collection tank and is configured to perform the operation of discharging the waste liquid in the waste liquid collection tank.

[0026] The pressure relief valve of the waste liquid collection tank is located at the air pressure output end of the waste liquid collection tank and is configured to perform the operation of regulating the vacuum pressure inside the waste liquid collection tank.

[0027] The vacuum unit control valve, located at the connection point between the vacuum unit and the vacuum pipeline network, is configured to dynamically adjust the vacuum level of the vacuum buffer tank.

[0028] In addition, the vacuum unit, located at the end of the vacuum pipeline network, is configured to respond to the control commands of the coordinating controller through the vacuum unit start-stop and / or gradient frequency conversion adjustment mechanism, dynamically adjust the system vacuum level, form an interlock control with the pressure regulating valves of the waste liquid collection tank and the buffer tank, and achieve closed-loop pressure balance through the vacuum unit start-stop and / or dynamic matching of the suction power.

[0029] Optionally, the multi-media flushing assembly includes:

[0030] The multi-media switching valve group is equipped with one or more parallel flushing media input pipelines. Each flushing media input pipeline is equipped with an array of self-controlled valves. The array of self-controlled valves is configured to select and switch flushing media without disturbance based on preset media priority.

[0031] The fan-shaped wide-angle atomizing nozzle is connected to the self-controlled valve array of each flushing medium input pipeline. The spray pressure is dynamically and steplessly adjustable in the range of 0.2-0.6MPa, the spray angle is ≥70°, and the coverage area of ​​the funnel inner wall is ≥75%.

[0032] Multiple types of flow monitoring units are installed at the connection between the flushing medium input pipeline and the vacuum suction assembly, including mass flow meters, electromagnetic flow meters, vortex flow meters, orifice plate flow meters, and rotor flow meters.

[0033] Optionally, in response to at least one input including a liquid level over-limit signal, a timing signal, and a manual command, the control resources are dynamically allocated according to priority arbitration rules, including:

[0034] When a signal indicating that the liquid level has exceeded the limit is received, the current non-liquid level triggering task is immediately interrupted, a task queue is generated based on the priority arbitration rule, and the liquid level triggering mode is activated first, and the suction and flushing stage is automatically entered.

[0035] When a timing signal is received and there is no liquid level trigger signal, the timing working mode is activated, and the suction and rinsing stages are forcibly started according to the preset cycle. In the timing working mode, the suction process prioritizes emptying the current waste liquid, and the suction time is dynamically compressed according to the real-time liquid level. In the timing working mode, the rinsing process prioritizes switching the disinfection medium and executing quantitative supply control.

[0036] When a manual instruction is received, the manual intervention mode is activated, the automatic control logic is isolated by a mutex lock mechanism, and the suction and flushing stage is entered after the safety check is passed. In this process, a temporary overlay interface for media priority is provided to dynamically reload the preset media sequence.

[0037] The priority arbitration rules include:

[0038] When the liquid level over-limit signal conflicts with the timing signal, the liquid level trigger mode is executed first and the timing task is delayed until the current operation is completed;

[0039] During manual intervention mode, the automatic response of liquid level triggering and timing signals is suspended until the system is reset to automatic control state.

[0040] Optionally, controlling the vacuum suction assembly to perform suction operations, simultaneously discharging waste liquid from the waste liquid collection tank when the liquid level exceeds the limit and / or compensating for vacuum pressure, and controlling the vacuum buffer tank to absorb pressure fluctuations based on the target vacuum level include:

[0041] During the suction phase, a dual-mode interlock verification of liquid level and pressure is performed based on the obtained liquid level data and vacuum pressure data of the waste liquid collection tank to determine the liquid level and vacuum pressure status of the waste liquid collection tank.

[0042] In response to at least one of the states of excessive liquid level or abnormal vacuum pressure in the waste liquid collection tank, the corresponding valve group is activated to perform the excessive liquid level discharge or vacuum pressure compensation operation.

[0043] Based on the vacuum detection value of the vacuum buffer tank, the vacuum unit output frequency of the vacuum suction component is adjusted by starting and stopping the vacuum unit and / or by frequency conversion to maintain the target vacuum level.

[0044] Optionally, in response to at least one of the states of excessive liquid level or abnormal vacuum pressure in the waste liquid collection tank, the corresponding valve group is activated to perform the operation of excessive liquid level discharge or vacuum pressure compensation.

[0045] When the waste liquid collection tank is detected to be above the preset liquid level range, the vacuum pressure compensation operation of the waste liquid collection tank is suspended, the receiving monitoring node valve and the vacuum input valve of the waste liquid collection tank are closed, the pressure relief valve of the waste liquid collection tank is opened to perform a pressure relief operation on the waste liquid collection tank, and after the pressure returns to zero, the waste liquid collection tank unloading valve is started to discharge the waste liquid in the tank.

[0046] When the waste liquid collection tank is detected to be below the preset liquid level parameter range, close the waste liquid collection tank pressure relief valve to stop discharging waste liquid, close the receiving monitoring node valve and the waste liquid collection tank pressure relief valve, open the waste liquid collection tank vacuum input valve, and restart the vacuum pressure compensation operation of the waste liquid collection tank until the vacuum degree inside the waste liquid collection tank is increased to the preset vacuum degree range.

[0047] When the vacuum pressure of the waste liquid collection tank is detected to be lower than the preset vacuum pressure range, the receiving monitoring node valve, the waste liquid collection tank pressure relief valve and the waste liquid collection tank unloading valve are closed, and the vacuum input valve of the waste liquid collection tank is restarted to rebuild the vacuum degree in the waste liquid collection tank until it returns to the preset vacuum pressure range.

[0048] When the vacuum pressure of the waste liquid collection tank is detected to be higher than the preset vacuum pressure range, the vacuum input valve of the waste liquid collection tank is closed.

[0049] When the liquid level and pressure are both within the corresponding preset range, close the pressure relief valve, vacuum input valve, and unloading valve of the waste liquid collection tank, open the receiving monitoring node valve to perform waste liquid suction, and close the receiving monitoring node valve after a delay after suction is completed and wait for the next instruction.

[0050] Optionally, based on the obtained vacuum detection value of the vacuum buffer tank, the vacuum unit output frequency of the vacuum suction component is adjusted by starting and stopping the vacuum unit and / or by frequency conversion to maintain the target vacuum level, including:

[0051] When the vacuum detection value of the vacuum buffer tank is detected to be lower than the preset vacuum detection range, the vacuum unit control valve is opened, and the vacuum unit frequency is increased to the vacuum detection range through vacuum unit start / stop and / or based on frequency conversion rules.

[0052] When the vacuum detection value of the vacuum buffer tank is detected to be higher than the set parameter range, the vacuum unit control valve is closed, and the vacuum unit frequency is reduced to the vacuum detection range through vacuum unit start-up and / or based on frequency conversion rules. After a set time delay, the vacuum unit is shut down.

[0053] The frequency conversion rules for the vacuum unit include: when the pressure fluctuation of the vacuum buffer tank exceeds ±5%, the compensation level of the vacuum unit frequency is matched in real time according to the direction of the pressure deviation; when the pressure stabilizes at the target vacuum threshold, the vacuum unit frequency is reduced to the preset minimum operating frequency required by the vacuum unit.

[0054] Optionally, after suction is completed, a multi-media flushing assembly is activated according to a preset media sequence to perform adaptive flushing operations, including media selection, stepless adjustment of jet pressure, and closed-loop control of media usage.

[0055] The type of rinsing medium is switched based on a preset media priority sequence. The media sequence includes tap water, purified water, deionized water and disinfectant in sequence, reverse sequence or a pre-specified combination.

[0056] Based on the feedback of liquid level monitoring, the spray pressure of the fan-shaped wide-angle atomizing nozzle is dynamically adjusted to the range of 0.2-0.6MPa, and the spray angle of ≥70° and the coverage area of ​​≥75% are achieved through the fan-shaped wide-angle atomizing nozzle;

[0057] Based on the feedback flow monitoring data, the medium supply is adjusted by opening and closing the multi-media switching valve group and / or adjusting the opening degree compensation.

[0058] Optionally, it includes: an HMI interactive interface that interacts with the controller and is configured for parameter input and dynamic configuration, control mode switching, operation status visualization, and triggering of manual operation commands.

[0059] (III) Beneficial Effects

[0060] The beneficial effects of this invention are as follows: This invention receives and guides waste liquid and flushing medium in real time through the receiving and guiding component, and combined with the liquid level dynamic monitoring function, it provides accurate input for automated control; at the same time, the gradient adjustable suction driving force generated by the vacuum suction component significantly improves the waste liquid discharge efficiency, ensures that the waste liquid is discharged quickly and completely, and effectively avoids the problems of waste liquid residue and pipe adhesion caused by insufficient flow rate in the traditional gravity flow method.

[0061] Secondly, the multi-media flushing component achieves precise adjustment of flushing fluid usage through multi-media switching and flow closed-loop control, overcoming the drawbacks of excessive use of cleaning or disinfecting fluids in manual flushing, and reducing resource consumption and wastewater treatment load. When operating in conjunction with the interlocking pressure stabilizing component, the liquid level-pressure dual-parameter interlocking verification mechanism of the waste liquid collection tank can simultaneously perform waste discharge due to excessive liquid level and vacuum pressure compensation, while the pressure fluctuation absorption control of the vacuum buffer tank further ensures system stability and avoids the risk of equipment damage caused by sudden pressure changes.

[0062] Furthermore, the collaborative controller dynamically allocates control resources based on priority arbitration rules, responds to multiple input modes such as liquid level exceeding limits, timing signals, and manual commands, and automatically triggers the adaptive flushing process of the multi-media flushing components after suction is completed. Through multi-dimensional collaboration of media selection, jet pressure adjustment, and atomization coverage angle optimization, splash-free cleaning is achieved, completely eliminating the risk of biological contamination.

[0063] Therefore, this invention takes full-process automated control as its core, and through efficient interlocking between components and adaptive parameter adjustment, it can improve the efficiency of waste liquid treatment while significantly reducing the intensity of manual operation and the risk of secondary pollution, thus combining process reliability and resource economy. Attached Figure Description

[0064] Figure 1 This is a schematic diagram of the system composition provided in an embodiment of the present invention;

[0065] Figure 2 A flowchart illustrating the steps performed by the system collaborative controller provided in this embodiment of the invention;

[0066] Figure 3 A schematic diagram illustrating the specific process of step S1 performed by the system collaborative controller provided in this embodiment of the invention;

[0067] Figure 4 A schematic diagram illustrating the specific process of step S2 performed by the system collaborative controller provided in this embodiment of the invention;

[0068] Figure 5 A schematic diagram of the specific process of step S22 performed by the system collaborative controller provided in this embodiment of the invention;

[0069] Figure 6 A schematic diagram of the specific process of step S23 performed by the system collaborative controller provided in this embodiment of the invention;

[0070] Figure 7 A schematic diagram illustrating the specific process of step S3 performed by the system collaborative controller provided in this embodiment of the invention;

[0071] Figure 8 This is a schematic diagram of the dynamically adjustable cleaning medium injection pressure structure of the system provided in the embodiment of the present invention.

[0072] [Explanation of Labels in the Attached Image]

[0073] 1: Sampling port of fermenter; 2: Funnel assembly; 3: Liquid level monitoring unit; 4: Atomizing nozzle; 5: Multi-media switching valve assembly; 6: Vacuum suction pipeline; 7: Vacuum unit; 8: Collaborative controller; 9: HMI interactive interface; 10: Flow monitoring unit; 11: Booster pump; 12: Liquid inlet control valve assembly; 13: Liquid outlet control valve assembly. Detailed Implementation

[0074] To better explain and facilitate understanding of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0075] like Figure 1As shown in the embodiment of the present invention, a multi-mode vacuum suction and intelligent flushing waste liquid treatment system for a fermenter sampling port 1 includes: a receiving and guiding component configured to receive and guide the sampling waste liquid and flushing medium, and to monitor the liquid level; a vacuum suction component configured to generate a gradient-adjustable suction driving force; a multi-media flushing component configured to provide multiple flushing media and to monitor the flow rate; and an interlocking pressure stabilizing component including a waste liquid collection tank and a vacuum buffer tank. The waste liquid collection tank is configured to temporarily store the waste liquid and monitor the internal pressure and liquid level, while the vacuum buffer tank is configured to coordinate and regulate the vacuum suction. The suction component outputs suction pressure; the coordination controller 8 is configured to: respond to at least one input of receiving a liquid level over-limit signal, a timing signal, and a manual command, dynamically allocate control resources according to priority arbitration rules; control the vacuum suction component to perform suction operation, simultaneously discharge waste liquid from the waste liquid collection tank due to liquid level over-limit and / or compensate for vacuum pressure, and control the vacuum buffer tank to absorb pressure fluctuations based on the target vacuum degree; after suction is completed, start the multi-media flushing component according to the preset media sequence to perform adaptive flushing work including media selection, stepless adjustment of injection pressure, and closed-loop control of media usage.

[0076] This invention uses a flow-guiding component to receive and guide waste liquid and flushing medium in real time, combined with a dynamic liquid level monitoring function, to provide precise input for automated control. At the same time, the gradient adjustable suction driving force generated by the vacuum suction component significantly improves the waste liquid discharge efficiency, ensuring that the waste liquid is discharged quickly and completely, and effectively avoiding the problems of waste liquid residue and pipe adhesion caused by insufficient flow rate in traditional gravity flow methods.

[0077] Secondly, the multi-media flushing component achieves precise adjustment of flushing fluid usage through multi-media switching and flow closed-loop control, overcoming the drawbacks of excessive use of cleaning or disinfecting fluids in manual flushing, and reducing resource consumption and wastewater treatment load. When operating in conjunction with the interlocking pressure stabilizing component, the liquid level-pressure dual-parameter interlocking verification mechanism of the waste liquid collection tank can simultaneously perform waste discharge due to excessive liquid level and vacuum pressure compensation, while the pressure fluctuation absorption control of the vacuum buffer tank further ensures system stability and avoids the risk of equipment damage caused by sudden pressure changes.

[0078] Furthermore, the collaborative controller 8 dynamically allocates control resources based on priority arbitration rules, responds to multiple input modes such as liquid level exceeding limits, timing signals, and manual commands, and automatically triggers the adaptive flushing process of the multi-media flushing components after suction is completed. Through multi-dimensional collaboration of media selection, jet pressure adjustment, and atomization coverage angle optimization, splash-free cleaning is achieved, completely eliminating the risk of biological contamination.

[0079] Therefore, this invention takes full-process automated control as its core, and through efficient interlocking between components and adaptive parameter adjustment, it can improve the efficiency of waste liquid treatment while significantly reducing the intensity of manual operation and the risk of secondary pollution, thus combining process reliability and resource economy.

[0080] To better understand the above technical solutions, exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that the present invention can be understood more clearly and thoroughly, and that the scope of the present invention can be fully conveyed to those skilled in the art.

[0081] Furthermore, the flow guiding component includes: a funnel component 2, made of corrosion-resistant material, which has a flow guiding function, an inclined flow guiding surface, and a bottom inclined flow guiding surface that is sealed to the inlet end of the vacuum suction component, and an anti-backflow baffle is provided at the end of the inclined flow guiding surface; and a liquid level monitoring unit 3, which is installed on the funnel component 2, including an ultrasonic liquid level gauge, a radar liquid level gauge, a differential pressure liquid level gauge, a tuning fork liquid level gauge, and a float liquid level gauge.

[0082] Next, the vacuum suction assembly includes: a vacuum piping network, a pressure control valve assembly, and a vacuum unit 7. These will be described in detail below:

[0083] The vacuum pipeline network, with a multi-branch topology, connects the flow outlet of the flow guiding component, the flushing medium injection end of the multi-media flushing component, the waste liquid input interface of the waste liquid collection tank, and the pressure balance port of the vacuum buffer tank, forming a closed-loop pressure control path. Preferably, the waste liquid flow velocity in the vacuum pipeline network is ≥1.5m / s.

[0084] Also refer to Figure 1 Pressure control valve assembly, which includes various types of valves such as solenoid valves, pneumatic valves, and electric valves, specifically:

[0085] The monitoring node valve #1 is located at the connection between the flow outlet and the vacuum pipeline network and is configured to open during the suction phase to establish a waste liquid flow path.

[0086] Flushing medium isolation valves 6#, 7#, and 8# are located at the intersection of the flushing medium injection end and the vacuum pipeline network, and are configured to open during the flushing phase to establish a medium flow path.

[0087] Vacuum input valve 3# of the waste liquid collection tank is located at the connection between the waste liquid input interface of the waste liquid collection tank and the vacuum pipeline network. It is configured to: in the suction stage, respond to the control command of the co-controller 8 to perform control to adjust the vacuum degree of the waste liquid tank; and in the flushing stage, switch to the closed state to isolate the connection path between the flushing medium and the vacuum buffer tank.

[0088] Waste liquid collection tank unloading valve #4 is located at the waste sampling output end of the waste liquid collection tank and is configured to perform the operation of discharging waste liquid from the tank.

[0089] The waste liquid collection tank pressure relief valve #2 is located at the air pressure output end of the waste liquid collection tank and is configured to perform the operation of regulating the vacuum air pressure inside the tank.

[0090] Vacuum unit control valve #5 is located at the connection point between vacuum unit 7 and the vacuum pipeline network, and is configured to dynamically adjust the vacuum level of the buffer tank.

[0091] In addition, a pressure regulating valve for the buffer tank is provided, located at the pressure balance port of the vacuum buffer tank, and configured to perform vacuum regulation based on a dynamic pressure interlock mechanism.

[0092] Vacuum unit 7, located at the end of the vacuum pipeline network, is configured to respond to the control commands of the coordinating controller 8 through unit start-up and / or gradient frequency conversion adjustment mechanism, dynamically adjust the system vacuum level, form an interlock control with the pressure regulating valves of the waste liquid collection tank and buffer tank, and achieve closed-loop pressure balance through dynamic matching of unit start-up and / or suction power.

[0093] Then, the multi-media flushing assembly includes: a multi-media switching valve group 5, which is provided with one or more parallel flushing media input pipelines, each flushing media input pipeline is equipped with an array of self-controlled valves, the array of self-controlled valves being configured to select and switch flushing media without disturbance based on preset media priority; a fan-shaped wide-angle atomizing nozzle 4, which is connected to the array of self-controlled valves of each flushing media input pipeline, with a dynamically stepless adjustable spray pressure range of 0.2-0.6MPa, a spray angle ≥70°, and a coverage area of ​​≥75% of the inner wall of the funnel; and a multi-type flow monitoring unit 10, which is set at the connection between the flushing media input pipeline and the vacuum suction assembly, including a mass flow meter, an electromagnetic flow meter, a vortex flow meter, an orifice plate flow meter, and a rotor flow meter.

[0094] It's important to understand that collaborative controllers (such as microcontrollers, PLCs, DCS, etc.) have built-in multi-mode control logic (different modes such as timing, level triggering, and manual jogging; different modes can be used individually or in combination), such as... Figure 2 As shown, in response to the state of the above components, the Coordination Controller 8 performs the following steps:

[0095] S1. In response to at least one input, including liquid level over-limit signal, timing signal and manual command, dynamically allocate control resources according to priority arbitration rules.

[0096] Furthermore, such as Figure 3 As shown, step S1 includes:

[0097] S11. When a signal indicating that the liquid level has exceeded the limit is received, the current non-liquid level triggering task is immediately interrupted, a task queue is generated based on the priority arbitration rule, and the liquid level triggering mode is activated first, and the suction and flushing stage is automatically entered.

[0098] It should be emphasized that the priority arbitration rules include: when the liquid level over-limit signal conflicts with the timing signal, the liquid level trigger mode shall be executed first and the timing task shall be delayed until the current operation is completed; during the execution of the manual intervention mode, the automatic response of the liquid level trigger and timing signals shall be suspended until the system is reset to the automatic control state.

[0099] S12. When a timing signal is received and there is no liquid level trigger signal, the timing working mode is activated, and the suction and rinsing stages are forcibly started according to the preset cycle. In the timing working mode, the suction process prioritizes emptying the current waste liquid, and the suction time is dynamically compressed according to the real-time liquid level. In the timing working mode, the rinsing process prioritizes switching the disinfection medium and performing quantitative supply control.

[0100] S13. When a manual instruction is received, the manual intervention mode is activated, the automatic control logic is isolated through a mutex lock mechanism, and the suction and flushing stage is entered after the safety verification is passed. In this process, a temporary overlay interface for media priority is provided to dynamically reload the preset media sequence.

[0101] In one specific embodiment, the cooperative controller 8 is deployed with three operating modes, and multimodal cooperative control is achieved through priority arbitration rules and dynamic task scheduling. Specifically:

[0102] (1) Liquid level trigger mode: The liquid level trigger mode detects the liquid level status of the funnel component 2 in real time through the liquid level monitoring unit 3. When the liquid level exceeds the preset threshold, the automatic control program is triggered. The specific execution process includes: after the controller receives the liquid level signal, it starts the vacuum suction unit (the vacuum unit 7 is accelerated to the initial set frequency by frequency conversion, and the pressure of the vacuum buffer tank is maintained to the set value); the waste liquid is quickly discharged into the waste liquid collection tank through the vacuum suction pipe 6, and the suction time is controlled by the feedback of the flow monitoring unit 10; after the suction is completed, the multi-media switching valve group 5 automatically switches to the preset flushing medium (such as purified water), the atomizing nozzle 4 is started, and the flushing time is 5 to 15 seconds (adjustable); the system is reset and enters the standby state, waiting for the next liquid level trigger; and, abnormal handling: if the liquid level monitoring fails, the system triggers an alarm and switches to the timed mode as a redundancy guarantee.

[0103] (2) Timed Working Mode: The timed working mode supports setting the cycle according to production batch or process requirements (such as every 2 hours or after each batch), with a minimum time interval of 10 minutes (adjustable). The specific execution process includes: the controller sends instructions according to the preset cycle to force the start of the "suction + flushing" process, which is not limited by the current liquid level; during the suction stage, the current waste liquid is drained first. If the liquid level is lower than the threshold, the suction time is shortened (such as 5 seconds) to ensure pipeline cleanliness; during the flushing stage, disinfectant (such as sodium hypochlorite solution) can be used first to enhance sterilization, or tap water and other media can be used. The amount used is quantitatively controlled by the flow monitoring unit 10 (such as 50-100mL per time). Priority Adjustment: If the timed mode conflicts with the liquid level trigger mode, the liquid level trigger takes priority, and the timed task is automatically postponed.

[0104] (3) Manual Intervention Mode: Manual intervention mode is triggered by the HMI interface or physical button for a single operation, used for emergency cleaning or debugging. Its safety design and execution process includes: Dual safety verification: Before operation, the button must be pressed and held for 3 seconds and the password must be verified. At the same time, the system automatically detects the status of the waste liquid collection tank (liquid level is below the high limit and pressure is normal). If either condition is not met, the start is prohibited; Media priority overlay: Allows the operator to temporarily switch the flushing media (such as switching to deionized water). The execution process is the same as the liquid level trigger mode; Automatic reset: After completion, the system resets to the automatic control state and restores the original media sequence.

[0105] The above-mentioned mode coordination mechanism: The above three modes can be run in parallel through controller logic. The specific coordination rules include: 1) During the operation of the timed mode, if the liquid level trigger condition is met, the control right is immediately seized to execute the liquid level task, and the original timed task is added to the queue and executed with a delay; 2) After the manual intervention mode is activated, the automatic response of the liquid level and timed signals is suspended by the mutual exclusion lock until the manual operation is completed and the system is reset; 3) When switching modes, the current parameters (such as medium sequence, timing period, frequency setting value) are automatically saved to avoid data loss.

[0106] S2. Control the vacuum suction component to perform suction operation, simultaneously discharge waste liquid exceeding the liquid level limit and / or compensate vacuum pressure in the waste liquid collection tank, and control the vacuum buffer tank to absorb gas pressure fluctuations based on the target vacuum degree.

[0107] Furthermore, such as Figure 4 As shown, step S2 includes:

[0108] S21. During the suction stage, a level-pressure dual-mode interlocking verification is performed based on the obtained liquid level data and vacuum pressure data of the waste liquid collection tank to determine the liquid level and vacuum pressure status of the waste liquid collection tank.

[0109] S22. In response to at least one of the following conditions: the liquid level in the waste liquid collection tank exceeds the limit or the vacuum pressure is abnormal, activate the corresponding valve group to perform the liquid level exceeding the limit discharge or vacuum pressure compensation operation.

[0110] Among them, such as Figure 5 As shown, step S22 includes:

[0111] S221. When the waste liquid collection tank is detected to be above the preset liquid level range, the vacuum pressure compensation operation of the waste liquid collection tank is suspended, the receiving monitoring node valve and the vacuum input valve of the waste liquid collection tank are closed, the pressure relief valve of the waste liquid collection tank is opened to perform a pressure relief operation on the waste liquid collection tank, and after the pressure returns to zero, the waste liquid collection tank unloading valve is started to discharge the waste liquid in the tank.

[0112] S222. When the waste liquid collection tank is detected to be below the preset liquid level parameter range, close the waste liquid collection tank pressure relief valve to stop discharging waste liquid, close the receiving monitoring node valve and the waste liquid collection tank pressure relief valve, open the waste liquid collection tank vacuum input valve, and restart the vacuum pressure compensation operation of the waste liquid collection tank until the vacuum degree inside the waste liquid collection tank is increased to the preset vacuum degree range.

[0113] S223. When the vacuum pressure of the waste liquid collection tank is detected to be lower than the preset vacuum pressure range, close the receiving monitoring node valve, the waste liquid collection tank pressure relief valve and the waste liquid collection tank unloading valve, and restart the vacuum input valve of the waste liquid collection tank to rebuild the vacuum degree inside the waste liquid collection tank until it returns to the preset vacuum pressure range.

[0114] S224. When the vacuum pressure of the waste liquid collection tank is detected to be higher than the preset vacuum pressure range, close the vacuum input valve of the waste liquid collection tank.

[0115] S225. When the liquid level and pressure are both within the corresponding preset range, close the pressure relief valve, vacuum input valve and unloading valve of the waste liquid collection tank, open the receiving monitoring node valve to perform waste liquid suction, and close the receiving monitoring node valve after a delay after suction is completed and wait for the next instruction.

[0116] In another specific embodiment, the controller performs a two-parameter interlock verification by comparing the liquid level detection value (LT01-V001) and the pressure detection value (PT01-V001) in real time. The specific process is as follows:

[0117] (1) Handling abnormal liquid levels:

[0118] 1) When the liquid level detection unit (LT01-V001) detects that the liquid level in the waste liquid collection tank is higher than the set range, the vacuum pressure compensation operation is paused, and the controller immediately performs the following operations: close valves 1# and 3# to isolate the waste liquid input, open valve 2# to depressurize the waste liquid collection tank; when the pressure returns to zero, start valve 4# and activate the discharge pump (if configured) to remove the waste liquid from the tank; after the liquid level returns to the normal range, close valve 4# and restart the pressure control program.

[0119] 2) Liquid level over the limit (low): When the liquid level detection value is lower than the set range, the controller performs the following actions: closes control valve #4 to stop liquid discharge, closes valves #1 and #2 to seal the pressure relief path; opens valve #3 and restarts the suspended vacuum pressure compensation operation, and raises the vacuum level in the tank to the set range through vacuum unit 7.

[0120] 3) When the liquid level detection value LT01-V001 and the pressure detection value PT01-V001 are both within the set range, close valves 2#, 3# and 4#, open valve 1#, suck the waste liquid in the funnel into the waste liquid collection tank, close valve 1# after a delay, and wait for the next start command.

[0121] This embodiment fully covers the abnormal handling and steady-state operation requirements of the waste liquid collection tank through dual-modal verification of liquid level and pressure and multi-valve collaborative control, meeting the high reliability requirements of industrial scenarios.

[0122] S23. Based on the vacuum detection value of the vacuum buffer tank, the output frequency of the vacuum unit 7 of the vacuum suction component is adjusted by starting and stopping the vacuum unit 7 and / or by frequency conversion to maintain the target vacuum level.

[0123] Among them, such as Figure 6 As shown, step S23 includes:

[0124] S231. When the vacuum detection value of the vacuum buffer tank is detected to be lower than the preset vacuum detection range, the vacuum unit control valve is opened, and the vacuum unit 7 is started and stopped and / or the frequency of the vacuum unit 7 is increased to the vacuum detection range based on the frequency conversion rule.

[0125] S232. When the vacuum detection value of the vacuum buffer tank is detected to be higher than the set parameter range, the vacuum unit control valve is closed, the vacuum unit 7 is started and stopped and / or the frequency of the vacuum unit 7 is reduced to the vacuum detection range based on the frequency conversion rule, and the vacuum unit 7 is turned off after a set time delay.

[0126] The frequency conversion rules of vacuum unit 7 include: when the pressure fluctuation of the vacuum buffer tank exceeds ±5%, the compensation level of the frequency of vacuum unit 7 is matched in real time according to the direction of pressure deviation; when the pressure stabilizes at the target vacuum threshold, the frequency of vacuum unit 7 is reduced to the preset minimum operating frequency required by vacuum unit 7.

[0127] In another specific embodiment, the pressure control logic of the vacuum buffer tank is as follows: When the vacuum detection value of the vacuum buffer tank is lower than the set parameter range, the vacuum unit control valve 5# is opened, the frequency converter of the vacuum unit 7 is turned on and increased until the vacuum detection value of the vacuum buffer tank is raised to the set parameter range; when the vacuum detection value of the vacuum buffer tank is higher than the set parameter range, the vacuum unit control valve 5# is closed, the frequency converter of the vacuum unit 7 is reduced, and a delayed shutdown of the vacuum unit 7 is initiated. This achieves energy-saving logic optimization: the frequency converter of the vacuum unit 7 dynamically adjusts according to the buffer tank pressure: when the pressure approaches the set value, the frequency drops below the minimum operating frequency required by the vacuum unit 7; when the pressure fluctuation exceeds ±5%, the frequency is automatically compensated.

[0128] S3. After suction is completed, the multi-media flushing component is started according to the preset media sequence to perform adaptive flushing work, including media selection, stepless adjustment of jet pressure and closed-loop control of media usage.

[0129] Furthermore, such as Figure 7 As shown, step S3 includes:

[0130] S31. Switch the rinsing media type based on a preset media priority sequence. The media sequence includes tap water, purified water, deionized water and disinfectant in sequence, reverse combination or pre-specified sequence combination.

[0131] S32. Based on the feedback of liquid level monitoring, dynamically adjust the spray pressure of the fan-shaped wide-angle atomizing nozzle 4 to the range of 0.2-0.6MPa, and achieve cleaning with a spray angle ≥70° and a coverage area ≥75% through the fan-shaped wide-angle atomizing nozzle 4.

[0132] S33. Based on the feedback flow monitoring data, the medium supply is adjusted by opening and closing and / or opening degree compensation of the multi-media switching valve group 5.

[0133] It should be emphasized that the embodiments of the present invention also include the following two optimization settings:

[0134] (1) Vacuum suction anti-adhesion control: The flow rate in the pipeline is dynamically maintained by the frequency conversion adjustment of the vacuum unit 7. If the vacuum level is lower than the threshold, the controller automatically increases the frequency of the vacuum unit 7 and triggers the self-cleaning program (short-term high-pressure flushing) of the pipeline inner wall.

[0135] (2) Atomized anti-splash logic: Atomized anti-splash rinsing: Four fan-shaped atomizing nozzles (spray angle ≥70°) are used, with pressure infinitely adjustable from 0.2 to 0.6 MPa, covering ≥75% of the inner wall area of ​​the funnel, achieving splash-free cleaning. During the rinsing stage, splash risk can be monitored in real time (including but not limited to through cameras or sonar sensors). If splash is detected, the pressure is immediately reduced and an alarm is triggered.

[0136] Specifically, refer to Figure 8It can be seen that the methods to achieve a dynamically stepless adjustable range of 0.2-0.6 MPa for the cleaning medium injection pressure include the following coordinated approaches:

[0137] (1) For the flushing medium delivery pipelines where the flushing medium isolation valves 6#, 7# and 8# are located, a booster pump 11 is installed upstream of the valve body. The pressure of the cleaning medium in the pipeline after the pump is adjusted by the start / stop / frequency control of the booster pump 11.

[0138] (2) Add a cleaning fluid buffer tank. The tank is equipped with a liquid level monitoring unit 3, which can automatically control the liquid level by opening and closing the inlet control valve group 12 (12#, 13#, 14#, 15#, 16#, 17#) and the outlet control valve group 13 (9#, 10#, 11#). At the same time, a high-pressure gas pipeline and control valve are configured. The control valve is interlocked with the pressure detection unit of the corresponding buffer tank to automatically control the pressure to the set range.

[0139] It should be emphasized that method (1) and method (2) can be run independently or in combination.

[0140] In addition, embodiments of the present invention also include: an HMI interactive interface 9, which interacts with the controller and is configured for parameter input and dynamic configuration, control mode switching, operation status visualization, and triggering and executing manual operation commands.

[0141] Specifically, in terms of dynamic parameter configuration and priority management, the following functions can be achieved: operators can preset the priority sequence of rinsing media (such as disinfectant > purified water > tap water) in the HMI interface, and can dynamically set the rinsing cycle, suction level threshold (liquid level over-limit trigger point) and vacuum pressure tolerance range.

[0142] In terms of control mode switching and status visualization, the HMI interface provides a mode switching panel that supports one-click switching between liquid level trigger mode, timed working mode and manual intervention mode, and displays the current mode status in real time; the operation status visualization includes: real-time liquid level curve, vacuum pressure dynamic waveform, media storage percentage, current flushing media type and cumulative energy consumption data.

[0143] Regarding the execution of manual operation instructions, emergency cleaning or temporary debugging operations can be triggered through the HMI interface or physical buttons. When triggered, dual safety confirmation is required. In manual intervention mode, it is allowed to temporarily override preset parameters. Operation records are automatically stored in the log and synchronized to the cloud.

[0144] This embodiment achieves deep coupling between control logic and user operation through HMI interactive interface 9, constructing a highly available human-machine collaborative control system that meets the stringent requirements of cleaning processes in multiple fields.

[0145] Since the systems / devices described in the above embodiments of the present invention are systems / devices used to implement the methods of the above embodiments of the present invention, those skilled in the art can understand the specific structure and modifications of the systems / devices based on the methods described in the above embodiments of the present invention, and therefore will not be repeated here. All systems / devices used in the methods of the above embodiments of the present invention fall within the scope of protection of the present invention.

[0146] Those skilled in the art will understand that embodiments of the present invention can be provided as methods, systems, or computer program products. Therefore, the present invention can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present invention can take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0147] This invention is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each block of the flowchart illustrations and / or block diagrams, as well as combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions.

[0148] It should be noted that any reference numerals placed between parentheses in the claims should not be construed as limiting the claims. The word "comprising" does not exclude the presence of components or steps not listed in the claims. The word "a" or "an" preceding a component does not exclude the presence of a plurality of such components. The invention can be implemented by means of hardware comprising several different components and by means of a suitably programmed computer. In claims that enumerate several means, several of these means may be embodied by the same hardware. The use of the terms first, second, third, etc., is merely for convenience of expression and does not indicate any order. These terms can be understood as part of the component names.

[0149] Furthermore, it should be noted that in the description of this specification, the terms "one embodiment," "some embodiments," "embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Furthermore, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0150] Although preferred embodiments of the invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the claims should be interpreted to include both the preferred embodiments and all changes and modifications falling within the scope of the invention.

[0151] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, then this invention should also include these modifications and variations.

Claims

1. A multi-mode vacuum suction and intelligent flushing system for treating waste liquid from the sampling port of a fermenter, characterized in that, include: The receiving and diversion component is configured to receive and divert sampled waste liquid and flushing medium, and to implement liquid level monitoring; The vacuum suction assembly is configured to generate a gradient-adjustable suction driving force; The multi-media flushing assembly is configured to provide multiple flushing media and implement flow monitoring; The interlocking pressure stabilizing assembly includes a waste liquid collection tank and a vacuum buffer tank. The waste liquid collection tank is configured to temporarily store waste liquid and monitor the pressure and liquid level inside the tank. The vacuum buffer tank is configured to coordinate the suction output pressure of the vacuum suction assembly. The collaborative controller is configured to: respond to at least one input, including a liquid level over-limit signal, a timing signal, and a manual command, dynamically allocate control resources according to priority arbitration rules; control the vacuum suction component to perform suction operations, simultaneously discharge waste liquid from the waste liquid collection tank due to over-limit liquid level and / or compensate for vacuum pressure, and control the vacuum buffer tank to absorb pressure fluctuations based on the target vacuum level; after suction is completed, start the multi-media flushing component according to the preset media sequence to perform adaptive flushing work including media selection, stepless adjustment of injection pressure, and closed-loop control of media usage. The system, responding to at least one input from receiving a liquid level over-limit signal, a timing signal, and a manual command, dynamically allocates control resources according to priority arbitration rules, including: when receiving a liquid level over-limit signal, immediately interrupting the current non-liquid level triggering task, generating a task queue based on the priority arbitration rules, and first activating the liquid level triggering mode, automatically entering the suction and rinsing stage; when receiving a timing signal but without a liquid level triggering signal, activating the timing working mode, forcibly starting the suction and rinsing stage according to a preset cycle, wherein the suction process in the timing working mode prioritizes emptying the current waste liquid, and the suction duration is dynamically compressed according to the real-time liquid level, and the rinsing process in the timing working mode prioritizes switching the disinfection medium and executing quantitative supply control; when receiving a manual command, activating the manual intervention mode, isolating the automatic control logic through a mutual exclusion lock mechanism, and entering the suction and rinsing stage after passing the safety verification, wherein a temporary overlay interface for media priority is provided to dynamically reload the preset media sequence; The priority arbitration rules include: when the liquid level over-limit signal conflicts with the timing signal, the liquid level trigger mode is executed first and the timing task is delayed until the current operation is completed; during the execution of the manual intervention mode, the automatic response of the liquid level trigger and timing signals is suspended until the system is reset to the automatic control state.

2. The fermenter sampling port waste liquid treatment system with multi-mode vacuum suction and intelligent flushing as described in claim 1, characterized in that, The flow diversion components include: The funnel assembly is made of corrosion-resistant material and has an inclined flow guide surface. The bottom inclined flow guide surface is sealed to the inlet end of the vacuum suction assembly. The liquid level monitoring unit, installed on the funnel assembly, includes an ultrasonic liquid level gauge, a radar liquid level gauge, a differential pressure liquid level gauge, a tuning fork liquid level gauge, and a float liquid level gauge.

3. The fermenter sampling port waste liquid treatment system with multi-mode vacuum suction and intelligent rinsing as described in claim 1, characterized in that, The vacuum suction assembly includes: The vacuum pipeline network, with a multi-branch topology, connects the flow outlet of the flow guiding component, the flushing medium injection end of the multi-media flushing component, the waste liquid input interface of the waste liquid collection tank, and the pressure balance port of the vacuum buffer tank, forming a closed-loop pressure control path. Pressure control valve assembly, including: The monitoring node valve is located at the connection between the flow outlet and the vacuum pipeline network and is configured to open during the suction phase to establish a waste liquid flow path. A flushing medium isolation valve, located at the junction of the flushing medium injection end and the vacuum piping network, is configured to open during the flushing phase to establish a medium flow path. The vacuum input valve of the waste liquid collection tank is located at the connection between the vacuum input interface of the waste liquid collection tank and the vacuum pipeline network. It is configured to: adjust the vacuum level of the waste liquid collection tank in response to the control command of the co-controller during the suction phase; and switch to the closed state during the flushing phase to isolate the communication path between the flushing medium and the vacuum buffer tank. The waste liquid collection tank discharge valve is located at the waste sampling output end of the waste liquid collection tank and is configured to perform the operation of discharging the waste liquid in the waste liquid collection tank. The pressure relief valve of the waste liquid collection tank is located at the air pressure output end of the waste liquid collection tank and is configured to perform the operation of regulating the vacuum pressure inside the waste liquid collection tank. The vacuum unit control valve is located at the connection between the vacuum unit and the vacuum pipeline network and is configured to dynamically adjust the vacuum level of the vacuum buffer tank. In addition, the vacuum unit, located at the end of the vacuum pipeline network, is configured to respond to the control commands of the coordinating controller through the vacuum unit start-stop and / or gradient frequency conversion adjustment mechanism, dynamically adjust the system vacuum level, form an interlock control with the pressure regulating valves of the waste liquid collection tank and the buffer tank, and achieve closed-loop pressure balance through the vacuum unit start-stop and / or dynamic matching of the suction power.

4. The fermenter sampling port waste liquid treatment system with multi-mode vacuum suction and intelligent flushing as described in claim 1, characterized in that, The multi-media flushing assembly includes: The multi-media switching valve group is equipped with one or more parallel flushing media input pipelines. Each flushing media input pipeline is equipped with an array of self-controlled valves. The array of self-controlled valves is configured to select and switch flushing media without disturbance based on preset media priority. The fan-shaped wide-angle atomizing nozzle is connected to the self-controlled valve array of each flushing medium input pipeline. The spray pressure is dynamically and steplessly adjustable from 0.2 to 0.6 MPa, the spray angle is ≥70°, and the coverage area of ​​the funnel inner wall is ≥75%. Multiple types of flow monitoring units are installed at the connection between the flushing medium input pipeline and the vacuum suction assembly, including mass flow meters, electromagnetic flow meters, vortex flow meters, orifice plate flow meters, and rotor flow meters.

5. The fermenter sampling port waste liquid treatment system with multi-mode vacuum suction and intelligent rinsing as described in claim 3, characterized in that, Controlling the vacuum suction assembly to perform suction operations, simultaneously discharging waste liquid from the waste collection tank when the liquid level exceeds the limit and / or compensating for vacuum pressure, and controlling the vacuum buffer tank to absorb pressure fluctuations based on the target vacuum level include: During the suction phase, a dual-mode interlock verification of liquid level and pressure is performed based on the obtained liquid level data and vacuum pressure data of the waste liquid collection tank to determine the liquid level and vacuum pressure status of the waste liquid collection tank. In response to at least one of the states of excessive liquid level or abnormal vacuum pressure in the waste liquid collection tank, the corresponding valve group is activated to perform the excessive liquid level discharge or vacuum pressure compensation operation. Based on the vacuum detection value of the vacuum buffer tank, the vacuum unit output frequency of the vacuum suction component is adjusted by starting and stopping the vacuum unit and / or by frequency conversion to maintain the target vacuum level.

6. The fermenter sampling port waste liquid treatment system with multi-mode vacuum suction and intelligent rinsing as described in claim 5, characterized in that, In response to at least one of the following conditions: excessive liquid level in the waste liquid collection tank or abnormal vacuum pressure, activating the corresponding valve group to perform waste discharge due to excessive liquid level or vacuum pressure compensation operation includes: When the waste liquid collection tank is detected to be above the preset liquid level range, the vacuum pressure compensation operation of the waste liquid collection tank is suspended, the receiving monitoring node valve and the vacuum input valve of the waste liquid collection tank are closed, the pressure relief valve of the waste liquid collection tank is opened to perform a pressure relief operation on the waste liquid collection tank, and after the pressure returns to zero, the waste liquid collection tank unloading valve is started to discharge the waste liquid in the tank. When the waste liquid collection tank is detected to be below the preset liquid level parameter range, close the waste liquid collection tank unloading valve to stop discharging waste liquid, close the receiving monitoring node valve and the waste liquid collection tank pressure relief valve, open the waste liquid collection tank vacuum input valve, and restart the vacuum pressure compensation operation of the waste liquid collection tank until the vacuum degree inside the waste liquid collection tank is increased to the preset vacuum degree range. When the vacuum pressure of the waste liquid collection tank is detected to be lower than the preset vacuum pressure range, the receiving monitoring node valve, the waste liquid collection tank pressure relief valve and the waste liquid collection tank unloading valve are closed, and the vacuum input valve of the waste liquid collection tank is restarted to rebuild the vacuum degree in the waste liquid collection tank until it returns to the preset vacuum pressure range. When the vacuum pressure of the waste liquid collection tank is detected to be higher than the preset vacuum pressure range, the vacuum input valve of the waste liquid collection tank is closed. When the liquid level and pressure are both within the corresponding preset range, close the pressure relief valve, vacuum input valve, and unloading valve of the waste liquid collection tank, open the receiving monitoring node valve to perform waste liquid suction, and close the receiving monitoring node valve after a delay after suction is completed and wait for the next instruction.

7. The fermenter sampling port waste liquid treatment system with multi-mode vacuum suction and intelligent rinsing as described in claim 5, characterized in that, Based on the obtained vacuum detection value of the vacuum buffer tank, the vacuum unit output frequency of the vacuum suction component is maintained by starting and stopping the vacuum unit and / or adjusting the frequency via frequency converter, including: When the vacuum detection value of the vacuum buffer tank is detected to be lower than the preset vacuum detection range, the vacuum unit control valve is opened, and the vacuum unit frequency is increased to the vacuum detection range through vacuum unit start / stop and / or based on frequency conversion rules. When the vacuum detection value of the vacuum buffer tank is detected to be higher than the set parameter range, the vacuum unit control valve is closed, and the vacuum unit frequency is reduced to the vacuum detection range through vacuum unit start-up and / or based on frequency conversion rules. After a set time delay, the vacuum unit is shut down. The frequency conversion rules for the vacuum unit include: when the pressure fluctuation of the vacuum buffer tank exceeds ±5%, the compensation level of the vacuum unit frequency is matched in real time according to the direction of the pressure deviation; when the pressure stabilizes at the target vacuum threshold, the vacuum unit frequency is reduced to the preset minimum operating frequency required by the vacuum unit.

8. The fermenter sampling port waste liquid treatment system with multi-mode vacuum suction and intelligent flushing as described in any one of claims 1-4, characterized in that, After suction is completed, the multi-media flushing assembly is activated according to the preset media sequence to perform adaptive flushing operations, including media selection, stepless adjustment of injection pressure, and closed-loop control of media usage. The type of rinsing medium is switched based on a preset media priority sequence. The media sequence includes tap water, purified water, deionized water and disinfectant in sequence, reverse sequence or a pre-specified combination. Based on the feedback of liquid level monitoring, the spray pressure of the fan-shaped wide-angle atomizing nozzle is dynamically adjusted to the range of 0.2-0.6MPa, and the spray angle of the fan-shaped wide-angle atomizing nozzle is ≥70° and the coverage area is ≥75% for cleaning. Based on the feedback flow monitoring data, the medium supply is adjusted by opening and closing the multi-media switching valve group and / or adjusting the opening degree compensation.

9. The fermenter sampling port waste liquid treatment system with multi-mode vacuum suction and intelligent flushing as described in any one of claims 1-4, characterized in that, include: The HMI (Hardware Management Interface) interacts with the controller and can be configured for parameter input and dynamic configuration, control mode switching, operation status visualization, and triggering and executing manual operation commands.

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