Ice Machine Drainage System to Reduce Limescale and Stagnation
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Solution Overview
Problem
Ice machines face challenges with limescale formation and maintenance, as existing cleaning methods are inadequate, leading to reduced functionality and potential contamination of ice and water due to residual chemicals, and complex components make frequent deep maintenance impractical.
Innovation Solution
An ice machine with a drainage system that includes a solenoid valve and timed drainage mechanism to automatically drain water from the hydraulic circuit and evaporator during operation interruptions, preventing limescale buildup and stagnation, and a method that integrates timed drainage phases to manage water flow and prevent limescale formation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If frequent deep maintenance is carried out to remove limescale deposits, then cleaning effectiveness is improved, but device complexity and operational disruption increase due to disassembly of delicate parts
Solution Approach 1:
The ice machine automatically performs drainage and self-cleaning operations through integrated sensors and control units that detect limescale deposits and initiate drainage cycles without human intervention, allowing the system to maintain itself during normal operation
Solution Approach 2:
The system performs preliminary drainage operations before limescale deposits become problematic, using sensors to detect early signs of scaling and triggering preventive drainage cycles that remove water before significant deposits form
2Reliability
If drainage operations are performed frequently to prevent limescale buildup, then limescale formation is reduced, but water loss and energy consumption increase
Solution Approach 1:
Sensors monitor water quality parameters such as conductivity and temperature to detect limescale formation in real-time, providing feedback to the control unit which adjusts drainage frequency and duration to match actual contamination levels, avoiding unnecessary drainage operations
Solution Approach 2:
The system performs partial drainage operations that target only the specific areas where limescale deposits are detected, rather than draining the entire hydraulic circuit, thereby reducing water loss while maintaining effective cleaning
3Reliability
If chemical compounds are used for cleaning to effectively remove limescale, then cleaning effectiveness is improved, but contamination of ice and water occurs due to residual chemicals
Solution Approach 1:
The system uses physical drainage and thermal cycling processes to remove limescale deposits, converting the harmful effect of limescale buildup into a beneficial self-cleaning mechanism where temperature variations and water flow naturally detach and flush away deposits without chemical intervention
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 solution effectively reduces limescale formation and stagnation, enhancing the hygiene and operational efficiency of the ice machine by ensuring complete water drainage during stops and gradual melting phases, thereby maintaining ice quality and extending machine lifespan.
Implementation Method 1
drainage system that includes a solenoid valve and timed drainage mechanism to automatically drain water from the hydraulic circuit and evaporator during operation interruptions
Implementation Method 2
drainage system that includes a solenoid valve and timed drainage mechanism
Data Source
Figure 1
Figure 2
AI summary
An ice machine for making ice elements is provided, comprising: a container (4), integrated or not to the producer, designed for collecting ice elements (3) and equipped with an overflow sensor (4a), a refrigerating unit (7) including an evaporator (8) designed for making ice elements (3) and for conveying them to the container (4), a hydraulic circuit (11) designed for supplying water to the evaporator (8) and including a water storage basin (12) and a loading pipe (13) extending between the basin (12) and the evaporator (8), and a management system for the machine (1), the machine (1) also comprising a drainage conduit (16) designed for draining water from the hydraulic circuit (11) and from the evaporator (8), a drainage valve (17) designed for opening and closing the drainage conduit (16) on command, and control means (19) designed for opening the drainage valve (17) if the operation of the machine (1) is interrupted.