Bioreactor Cleaning Installation for Filter Cake and Clogging Control
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Solution Overview
Problem
Conventional bioreactors face challenges in efficiently cleaning the filter basket due to the formation of thick and impermeable filter cakes, which can lead to clogging and inefficient filtration. Additionally, existing systems lack interfaces for real-time monitoring and data collection, making it difficult to determine the degree of contamination and maintain the bioreactor effectively, especially in compact and decentralized applications such as rail vehicles.
Innovation Solution
The bioreactor cleaning system incorporates a measuring unit for liquid measurement, a pump for fluid management, and an electronic control unit for automated operation. This system allows for the testing of permeability, cleaning with pressurized liquids, and chemical cleaning using an aqueous acid solution. The system can be connected to the bioreactor via standard interfaces, enabling efficient and automated cleaning processes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the filter basket is cleaned frequently to prevent clogging, then the filtration efficiency is maintained, but the operational time between cleanings is reduced and maintenance frequency increases
Solution Approach 1:
The system performs preliminary actions by continuously monitoring filter cake thickness and permeability parameters, and automatically initiates cleaning operations before complete clogging occurs. The control unit receives signals from sensors that detect early signs of contamination buildup and triggers the cleaning sequence in advance, maintaining filtration efficiency without unnecessary frequent interventions.
Solution Approach 2:
The system implements feedback mechanisms through sensors that continuously monitor the filter basket condition, measuring parameters such as pressure differential, flow rate, and filter cake thickness. This feedback is processed by the control unit, which adjusts the cleaning frequency and intensity based on actual contamination levels, optimizing the balance between filtration efficiency and operational time.
2Reliability
If manual cleaning methods are used, then the system complexity is reduced, but the cleaning uniformity and reliability are insufficient
Solution Approach 1:
The bioreactor system performs self-service through automated cleaning functions. The control unit automatically activates the cleaning sequence based on sensor inputs, controlling the movement of cleaning tools and the application of cleaning agents without external intervention. This ensures uniform and reliable cleaning while minimizing the need for manual operations.
Solution Approach 2:
The system replaces manual mechanical cleaning with automated mechanical and chemical cleaning mechanisms. Electric motors drive the cleaning tools, and dosing systems automatically apply cleaning agents based on contamination levels detected by sensors. This substitution ensures consistent cleaning quality while reducing dependency on operator skill and availability.
3Ease of operation
If decentralized maintenance is implemented for rail vehicle bioreactors, then the accessibility and serviceability are improved, but the measurement and monitoring capabilities are limited
Solution Approach 1:
The bioreactor system integrates multiple functions into a single decentralized unit, combining filtration, monitoring, and cleaning capabilities. The control unit serves multiple purposes: it monitors contamination parameters, controls the cleaning sequence, manages chemical dosing, and communicates system status. This multi-functionality enables comprehensive maintenance capabilities in a compact, accessible configuration suitable for rail vehicles.
Solution Approach 2:
The control unit acts as an intermediary between the various sensing elements, cleaning mechanisms, and external monitoring systems. It collects data from multiple sensors, processes the information, and coordinates the cleaning operations, bridging the gap between limited physical access and comprehensive monitoring needs in decentralized rail vehicle applications.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The bioreactor cleaning system improves the efficiency and reliability of bioreactor maintenance by enabling automated and uniform cleaning, reducing the risk of clogging, and allowing for real-time monitoring and data-driven maintenance decisions. This leads to improved filtration efficiency and extended bioreactor operation without the need for manual intervention or removal.
Implementation Method 1
a pump having a first pump connection and a second pump connection, by means of the pump liquid can be pumped from the first suction connection optionally to the measuring unit, to the collection tank or to the acid tank, an aqueous acid solution can be pumped from the acid tank to the second suction connection and/or to the flushing connection
Implementation Method 2
a measuring unit for measuring liquid is provided
Implementation Method 3
a flushing connection for supplying a liquid to a cleaning nozzle of the bioreactor
Implementation Method 4
an aqueous acid solution can be pumped from the acid tank to the second suction connection and/or to the flushing connection
Data Source
AI summary
A bioreactor cleaning system for cleaning a bioreactor in a rail vehicle, comprising a first suction connection, a second suction connection, a flushing connection, an acid tank, a collection tank for receiving liquid drawn out of the bioreactor, a fresh water connection, a pump with a first pump connection and a second pump connection, and a measuring unit for measuring liquid. By means of the pump liquid can be pumped from the first suction connection optionally into the measuring unit, into the collection tank or into the acid tank, aqueous acid solution can be pumped from the acid tank to the second suction connection and/or to the flushing connection; fresh water can be pumped from the fresh water connection selectively to the flushing connection or the measuring unit; and liquid can be pumped from the measuring unit either to the collection tank or to the second suction connection.