Hood-Type Dishwasher Zoning for Parallel Batch Washing
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Commercial batch dishwashers face bottlenecks during peak times due to long cycle times required for heavily soiled washware, leading to inefficient use and manual handling, which compromises cleaning capacity and resource utilization.
Innovation Solution
A hood-type dishwasher with a treatment chamber divided into two zones, allowing independent treatment of washware based on soiling levels, where lightly soiled items are processed in a main zone and heavily soiled items in an auxiliary zone, with adjustable parameters for each zone to optimize cleaning capacity and resource efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a single treatment chamber is used to clean all washware, then the device complexity is low, but the productivity decreases during peak times due to long cycle times for heavily soiled items
Solution Approach 1:
The treatment chamber is divided into two independent treatment zones: a main treatment zone for lightly soiled washware and an auxiliary treatment zone for heavily soiled washware. Each zone can operate independently with its own wash system, allowing parallel processing of different washware types and significantly increasing cleaning capacity during peak times.
2Manufacturing precision
If a longer wash program is selected for heavily soiled washware, then the cleaning precision is improved, but the loss of time increases and blocks the dishwasher for other tasks
Solution Approach 1:
By segmenting the treatment chamber into main and auxiliary zones, the dishwasher can run a long wash program in the auxiliary zone for heavily soiled items while simultaneously running a short wash program in the main zone for lightly soiled items. This eliminates the blocking effect and allows continuous productivity.
Solution Approach 2:
Each treatment zone is equipped with independently adjustable wash parameters (temperature, spray pressure, cycle duration) tailored to the specific cleaning needs of the washware type assigned to that zone, optimizing cleaning quality for each local area.
3Productivity
If the treatment chamber is divided into multiple zones, then the productivity increases through parallel processing, but the device complexity increases
Solution Approach 1:
The treatment chamber is divided into two treatment zones separated by a partition wall, with each zone having its own wash system. This segmentation enables parallel processing while maintaining manageable complexity through modular design.
Solution Approach 2:
Both treatment zones utilize the same basic wash system components (pump, spray nozzles, control unit), allowing the system to handle different washware types with standardized equipment rather than requiring completely separate systems for each zone.
4Productivity
If manual handling is used for heavily soiled washware, then the ease of operation is maintained, but the productivity decreases and cleaning capacity is compromised
Solution Approach 1:
The automated treatment chamber is segmented into zones that can be independently accessed and loaded/unloaded, allowing operators to efficiently handle different types of washware in each zone without interfering with the automated washing process in other zones.
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 solution enables continuous operation during peak times by allowing simultaneous processing of lightly and heavily soiled washware without reducing the main zone's capacity, while optimizing energy, water, and chemical usage.
Implementation Method 1
a wash pump, a line system which is connected to the wash pump... The wash liquid contained in the wash tank can be conveyed from the wash pump to the wash nozzles via the line system
Implementation Method 2
sprayed onto the washware to be cleaned through the wash nozzles in the treatment chamber. The sprayed wash liquid then flows back into the wash tank
Implementation Method 3
The treatment chamber generally has arranged beneath it a wash tank in which liquid from the treatment chamber can flow back due to the force of gravity
Data Source
Figure 1a
Figure 1b
Figure 2
AI summary
The invention relates to a dishwasher (1) in the form of a commercial utensil washer or dishwasher which is designed as a batch dishwasher and is realized as a hood-type dishwasher, wherein the dishwasher (1) has a treatment chamber (2) with at least one wash system which is designed as a recirculation system, wherein the treatment chamber (2) has a first treatment zone (6) and at least one further, second treatment zone (7), wherein items ofwashware can be treated independently of one another and at least temporarily at the same time in the first and in the at least one second treatment zone (6, 7).