Multi-temperature storage and retrieval system
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Solution Overview
Problem
Conventional storage and retrieval systems face challenges in efficiently managing multiple temperature zones without increasing footprint and complexity, and maintaining the reliability and safety of robotic load handling devices operating in varying temperature environments.
Innovation Solution
A multi-temperature storage system utilizing a radiant cooling system with a closed network of tubing within a prefabricated, modular grid framework structure, separating temperature zones and supporting robotic load handling devices, while minimizing energy consumption and structural impact.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If conventional forced convection cooling systems are used to maintain multiple temperature zones, then temperature control is achieved, but energy consumption increases and structural complexity increases
Solution Approach 1:
The patent replaces the mechanical forced convection cooling system with a radiant cooling system that uses thermal radiation principles. The chilled panels radiate cooling energy through the air space to the storage containers, eliminating the need for mechanical blowers and forced air circulation, thereby reducing energy consumption while maintaining temperature control.
Solution Approach 2:
The patent utilizes the phase transition of water in the chilled panels, where water absorbs heat from the surrounding air and storage containers through evaporation and conduction, providing efficient cooling without requiring additional mechanical energy input.
2Temperature
If conventional forced convection cooling systems are used to maintain multiple temperature zones, then temperature control is achieved, but device complexity increases
Solution Approach 1:
The patent replaces complex mechanical forced convection systems with a simpler radiant cooling system using chilled panels that passively radiate cooling energy, reducing the number of moving parts and mechanical components required for temperature control.
Solution Approach 2:
The chilled panels in the radiant cooling system provide self-regulating temperature control by radiating cooling energy in response to temperature differentials, eliminating the need for complex control mechanisms and mechanical adjustment systems.
3Adaptability or versatility
If robotic load handling devices operate in chilled or frozen environments, then storage and retrieval of temperature-sensitive items is enabled, but device reliability decreases due to condensation and corrosion
Solution Approach 1:
The patent divides the storage environment into separate temperature zones (ambient, chilled, and frozen) using thermal barriers and insulated panels, allowing robotic devices to operate in ambient conditions while still accessing temperature-sensitive storage areas, thereby maintaining device reliability.
Solution Approach 2:
The patent introduces an intermediary ambient temperature zone between the robotic devices and the chilled/frozen storage areas. The robotic devices operate in this intermediate zone and only briefly enter the temperature-controlled zones for container retrieval, minimizing exposure to conditions that cause condensation and corrosion.
4Use of energy by moving object
If a radiant cooling system with chilled panels is used, then energy consumption is reduced, but the structural framework must support additional cooling infrastructure
Solution Approach 1:
The patent merges the structural framework functions by integrating the chilled panels directly into the existing grid framework structure. The cooling infrastructure is combined with the structural support system, eliminating the need for separate cooling equipment and reducing the additional structural load that would be required.
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 system maintains temperature control in multiple zones with reduced energy use and structural interference, enhancing device longevity and safety by preventing condensation and corrosion, thus optimizing storage and retrieval operations.
Implementation Method 1
a closed network of tubing extending in the first temperature storage zone for exchanging heat with at least a portion of the first temperature storage zone
Implementation Method 2
cooling within the storage columns according to the present invention is by radiant cooling. Radiant cooling is the use of cooled surfaces to remove heat primarily by thermal radiation
Data Source
AI summary
A multi-temperature storage system, including: a grid framework structure (GFS) including: a supporting framework structure (SFS) including storage columns arranged to accommodate storage containers, said SFS including a load bearing assembly of supporting walls at least one of which is a thermally insulating panel that separates the storage columns into first and second groups to define temperature storage zones; a track system for guiding movement of robotic load handling devices on the GFS mounted to the SFS and including a tracks arranged in a grid pattern including grid cells extending across the storage cells such that each modular storage cell supports a sub-group of two or more grid cells of the track system; a radiant cooling system including a cooling unit and a closed network of tubing in fluid communication with the cooling unit, the closed network extending in the first temperature storage zone.