Detachable Maintenance Enclosure for Cold-Store Switchgear Repair
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Solution Overview
Problem
Maintenance and repair of rack serving apparatuses in cold stores are challenging due to adverse ambient conditions, leading to increased time, cost, and safety risks, particularly with existing solutions that require relocation or heavy, space-consuming cabins.
Innovation Solution
A maintenance device comprising a frame and tarpaulin that can be easily attached to the main switching cabinet, creating a portable, climate-controlled tent-like space for maintenance, reducing the need for separate maintenance areas and minimizing energy consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If a cabin is integrated into the main switching cabinet to provide a heated maintenance space, then maintenance personnel can work in warmer conditions, but the device weight increases and energy consumption rises
Solution Approach 1:
The maintenance space is segmented from the main switching cabinet as a separate, detachable structure. The frame can be releasably fastened to the cabinet, allowing the maintenance space to be assembled only when needed for maintenance activities, thus avoiding permanent weight addition to the rack serving apparatus
Solution Approach 2:
The maintenance space transitions from a static integrated cabin to a dynamic, reconfigurable structure. The frame elements can be pivotally connected and releasably fastened, enabling the maintenance space to be assembled, disassembled, and repositioned as needed, optimizing both weight and functionality
2Temperature
If a heated cabin is integrated into every rack serving apparatus, then maintenance conditions improve, but costs increase significantly
Solution Approach 1:
The maintenance space frame is designed as a universal, multi-functional structure that can be attached to different main switching cabinets across multiple rack serving apparatuses. A single frame design can serve various locations and configurations, reducing manufacturing costs through standardization and economies of scale
Solution Approach 2:
The maintenance space structure uses detachable fastening mechanisms that allow for easy disassembly and recovery of components. The frame elements, tarpaulin, and fastening mechanisms can be recovered and reused on different apparatuses, reducing the need for permanent installation and lowering overall manufacturing and deployment costs
3Reliability
If the maintenance space is arranged high on the rack serving apparatus to provide escape routes, then safety requirements are met, but maintenance personnel must climb ladders which risks safety
Solution Approach 1:
The maintenance space frame incorporates pivotable elements that allow the structure to be positioned at different heights and configurations. The frame can be pivotally connected to the main switching cabinet and positioned to provide both adequate escape routes and safe, ladder-free access for maintenance personnel
Solution Approach 2:
The frame is divided into multiple segmentable elements that can be independently positioned and configured. This segmentation allows the maintenance space to be arranged at optimal heights for both safety compliance and safe personnel access, eliminating the need for ladder climbing
4Temperature
If the rack serving apparatus is relocated to a sealed maintenance area, then maintenance can be performed in controlled conditions, but downtime increases and throughput decreases
Solution Approach 1:
The maintenance space is segmented as a detachable structure that can be quickly assembled at the maintenance location without requiring relocation of the entire rack serving apparatus. This eliminates the time-consuming relocation and warming-up process, reducing downtime and maintaining throughput
Solution Approach 2:
The maintenance space frame and heating components can be prepared and positioned in advance, allowing for rapid deployment when maintenance is needed. The frame elements and tarpaulin can be pre-assembled and quickly attached to the main switching cabinet, minimizing the time the apparatus is out of service
5Temperature
If a sealed maintenance area is provided, then maintenance can be performed in controlled conditions, but space requirements and costs increase
Solution Approach 1:
The maintenance space uses a flexible tarpaulin as the enclosing shell instead of rigid walls. This flexible film creates a sealed, heated environment that requires minimal space and can be configured in compact arrangements, reducing the overall space requirements compared to traditional sealed maintenance areas
Solution Approach 2:
The maintenance space frame and tarpaulin structure can be nested or folded into a compact configuration when not in use. The segmentable frame elements and flexible tarpaulin can be stored in a space-efficient manner, minimizing the space required for storage and reducing overall facility space requirements
Data Source
AI summary
The invention relates to a maintenance device for use during maintenance and/or repair of a storage and retrieval unit in a cold store. According to the invention, the maintenance device has a frame, which can be releasably fastened to a main switchgear cabinet of the storage and retrieval unit, and a tarpaulin, which can be releasably fastened to the frame, and the frame and the tarpaulin are formed and can be arranged with respect to one another in such a way that a maintenance space can be produced thereby on the main switchgear cabinet of the storage and retrieval unit. The invention is also directed to a multi-level storage and retrieval unit for use in a cold store and to an arrangement comprising a maintenance device according to the invention and a main switchgear cabinet of a storage and retrieval unit.