Multi-Tank Dishwasher Heat-Input Control for Thermal Hygiene
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Solution Overview
Problem
Current methods for ensuring thermal hygiene efficiency in multi-tank dishwashers are limited as they fix process parameters, such as temperatures, which can lead to suboptimal operation and do not accurately detect the heat equivalents applied to items being cleaned, resulting in potential inefficiencies and increased energy consumption.
Innovation Solution
A method that uses sensors to detect temperatures within treatment zones and adjusts transport speed or temperature parameters based on actual heat input, allowing for real-time optimization of the washing process to ensure effective microorganism reduction and energy efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If fixed process parameters (temperatures) are used to ensure thermal hygiene efficiency, then hygiene standards are met, but energy consumption increases and operational efficiency decreases
Solution Approach 1:
The patent applies dynamics by transitioning from fixed process parameters to dynamically adjustable parameters. The control system continuously monitors actual temperatures in treatment zones and adjusts transport speed and temperature parameters in real-time based on detected heat equivalents, allowing the system to adapt to varying loads and conditions while maintaining hygiene standards and reducing energy consumption.
Solution Approach 2:
The patent implements feedback by using sensors to detect actual temperatures and heat equivalents applied to items, then feeding this information back to the control system. The control system uses this feedback to compare actual heat input against required heat equivalents and adjusts process parameters accordingly, creating a closed-loop control system that ensures hygiene efficiency while optimizing energy use.
2Ease of operation
If fixed process parameters are used, then operation is simplified, but the system cannot adapt to varying loads and conditions
Solution Approach 1:
The patent applies self-service by enabling the system to automatically monitor, detect, and adjust its own process parameters without external intervention. The control system autonomously detects heat equivalents, compares them against requirements, and adjusts transport speed and temperature parameters itself, maintaining operational simplicity while achieving high adaptability to varying loads and conditions.
Solution Approach 2:
The system maintains ease of operation through automated dynamic adjustment. Rather than requiring manual intervention to adapt to varying loads, the control system dynamically adjusts process parameters based on real-time detection of heat equivalents, combining operational simplicity with adaptability.
3Device complexity
If heat equivalents are not accurately detected, then control is simplified, but thermal hygiene efficiency cannot be guaranteed
Solution Approach 1:
The patent implements feedback by deploying temperature sensors in treatment zones to continuously detect actual temperatures and calculate heat equivalents. This detection feedback is fed to the control system, which uses it to verify that required heat equivalents are achieved and adjusts parameters if necessary, ensuring thermal hygiene reliability through informed control decisions.
Solution Approach 2:
The patent replaces direct mechanical measurement of heat equivalents with sensor-based temperature detection and computational calculation. Instead of complex direct measurement mechanisms, the system uses temperature sensors and control system calculations to accurately determine heat equivalents, reducing device complexity while maintaining reliability.
4Device complexity
If transport speed is fixed, then process control is simpler, but energy efficiency decreases
Solution Approach 1:
The patent applies dynamics by making transport speed adjustable rather than fixed. The control system dynamically modifies transport speed based on detected heat equivalents and energy consumption patterns, optimizing energy efficiency by adjusting speed to match actual processing requirements while maintaining manageable control complexity through automated decision-making.
Solution Approach 2:
The patent implements parameter changes by allowing transport speed to vary based on process conditions. The control system changes the transport speed parameter in response to detected heat equivalents and energy consumption, optimizing energy efficiency without significantly increasing control complexity through automated parameter adjustment.
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
This approach actively monitors and adjusts the washing process to ensure optimal thermal hygiene, allowing for energy-efficient operation and improved hygiene efficiency by dynamically adjusting parameters based on actual heat input, rather than relying on fixed standards.
Implementation Method 1
at least one sensor which transmits the temperature inside at least one treatment zone to a machine control system
Implementation Method 2
the washing water tank in the washing zone is filled with fresh water and heated to the preset washing tank temperature
Implementation Method 3
The washing zone normally has a pump for circulating the washing water, which pump draws washing water from the washing water tank and sprays it onto the dishes
Data Source
AI summary
A method for assessing and guaranteeing the thermal hygiene efficiency in a multi-tank dishwasher in which there is at least one sensor that transmits a temperature inside at least one treatment zone to a machine control system, in particular to the control system of the multi-tank dishwasher, the method includes: detecting the temperature inside at least one of the treatment zones by the sensor; determining the heat input applied to the items to be cleaned in at least one of the treatment zones on the basis of the temperature determined; comparing the heat input in the at least one treatment zone with a predefined heat input; and, as a function of the result of the comparison of the heat input values, varying the transport speed of the items to be cleaned through the multi-tank dishwasher, or varying the temperature of at least one of the process parameters acting on the heat input values as a control variable in a control loop for at least one of the treatment zones.