Insulated Heating Plate Container to Limit Stack-Effect Heat Loss
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Solution Overview
Problem
Conventional containers for heating plates used in butt welding pipes suffer from significant heat loss and energy consumption due to the 'stack effect,' which increases operational costs and poses risks to electrical components from rising hot air.
Innovation Solution
A container with insulating panels and a clamshell design that minimizes heat exchange with the environment, featuring an elastic return mechanism and a clamshell configuration for easy access, along with an insulation system to maintain temperature and reduce energy usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a conventional open-top metal container is used to store the heating plate, then the heating plate can be easily accessed and stored, but significant heat loss occurs due to the stack effect creating upward hot air motion, resulting in high energy consumption
Solution Approach 1:
The container is divided into a base portion and a cover portion that can be separated. The base portion contains the heating plate storage area, while the cover portion can be opened for easy access or closed to prevent heat loss. This segmentation allows the container to provide both easy access during loading/unloading and heat retention during storage.
Solution Approach 2:
The invention captures the hot air that would otherwise rise and cause heat loss, and redirects it to flow over the heating plate surface. This converts the harmful stack effect into a beneficial feature that maintains uniform temperature distribution across the heating plate, reducing energy consumption while preserving ease of access.
2Reliability
If the heating plate remains constantly on to maintain optimal temperature during prolonged inactivity, then readiness for use is ensured, but power consumption reaches significant amounts
Solution Approach 1:
The container pre-heats the air inside before the heating plate is inserted or shortly after insertion. This preliminary heating of the container environment reduces the thermal gradient between the heating plate and surroundings, allowing the plate to maintain temperature with lower power consumption during extended storage periods while remaining ready for use.
Solution Approach 2:
The container incorporates temperature sensing and control mechanisms that monitor the heating plate temperature and container internal temperature. This feedback system adjusts the heating element operation to maintain optimal temperature only when necessary, reducing power consumption during prolonged inactivity while ensuring readiness when needed.
3Ease of operation
If the heating plate is stored in an open container, then access is simple, but hot air rises and affects electrical connection box and handles, risking damage and rendering the heating plate unusable
Solution Approach 1:
The container acts as an intermediary barrier between the heating plate and the external environment. It channels the hot air flow in a controlled manner, directing it away from sensitive electrical components and handles while still allowing simple access for storage and retrieval operations.
Solution Approach 2:
The container design captures the harmful hot air rise and redirects it to flow beneficially over the heating plate surface for uniform temperature distribution, while simultaneously protecting electrical components from thermal damage. This converts the harmful stack effect into a dual-benefit system.
4Loss of energy
If insulation means are added to the container to reduce heat loss, then energy consumption decreases, but device complexity and manufacturing cost increase
Solution Approach 1:
The container uses thin insulating panels or foam layers integrated into the container walls rather than thick rigid insulation. This provides effective thermal insulation to reduce heat loss while maintaining a simple, lightweight structure that is easy to manufacture and does not significantly increase device complexity.
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
Achieves approximately 70% primary energy savings and 40-60% overall energy savings by reducing heat loss, while ensuring safety and mechanical durability at lower production costs.
Implementation Method 1
a insulation means surrounding the receptacle (3) so as to thermally insulate the receptacle (3) from the surrounding environment and keep constant the temperature of the heating plate (50) contained therein
Implementation Method 2
A so-called stack effect is created in the container and can produce an upward motion of the hot air, and this entails a considerable heat loss, which clearly effects power consumption. Moreover, it should be considered that the hot air that rises from the container affects the electrical connection box and the handles of the heating plate
Data Source
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AI summary
A container for heating plates for butt welding pipes has one or more walls forming at least one receptacle for containing a heating plate; an insulation means surrounds the receptacle and is adapted to thermally insulate the receptacle from the surrounding environment. The container (1) for heating plates for butt welding pipes comprises one or more walls (2) forming at least one receptacle (3) for containing a heating plate (50); an insulation means surrounding said receptacle (3) and adapted to thermally insulate said receptacle (1, 3) from the surrounding environment; said container (1) being characterized in that said one or more walls (2) have at least one opening (4) allowing the insertion/extraction of said heating plate (50) into/from said receptacle (3).