Rectangular Separating Compartment in Cylindrical Autoclave
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Solution Overview
Problem
Autoclaves with cylindrical shapes and convex bottoms have inefficiencies in space utilization due to rectangular trolleys not fully occupying the internal volume, leading to suboptimal heating and cooling processes and energy wastage.
Innovation Solution
A rectangular separating compartment is introduced inside the autoclave, maintaining balanced pressure through sensors or a connecting manifold, allowing for efficient heating and cooling within the compartment while reducing the volume to be heated and cooled, and enabling the use of different materials for the external structure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a cylindrical autoclave with convex bottoms is used, then the stability and structural strength are improved, but the space utilization efficiency deteriorates due to rectangular trolleys not fully occupying the internal volume
Solution Approach 1:
The autoclave internal space is segmented into two functional zones: a central cylindrical heating chamber for optimal thermal processing, and an outer annular space for structural support and stability. This segmentation allows each zone to be optimized for its specific function while working together as a unified system.
Solution Approach 2:
The rectangular separating compartment is nested within the cylindrical autoclave structure, with the compartment positioned concentrically inside the outer shell. This nesting arrangement maximizes space utilization by fitting the rectangular processing chamber into the cylindrical envelope, reducing wasted space while maintaining structural integrity.
2Reliability
If the entire autoclave volume is heated and cooled, then complete temperature treatment is achieved, but energy consumption increases significantly
Solution Approach 1:
The heating and cooling functions are extracted from the entire autoclave volume and concentrated solely within the separating compartment. The compartment acts as an isolated thermal processing chamber, while the outer shell serves only as a pressure-containing structure. This extraction of thermal functions to a specific zone dramatically reduces the mass requiring temperature changes, thereby lowering energy consumption while maintaining complete temperature treatment within the product processing area.
3Stress or pressure
If the external wall is heated to maintain internal pressure, then pressure stability is improved, but the wall material selection is limited to heat-resistant materials
Solution Approach 1:
The heating function is extracted from the external wall and relocated to the internal separating compartment. The external shell is thereby relieved of thermal processing duties and serves exclusively as a pressure-containing structure. This allows the external wall to be constructed from materials optimized for mechanical strength and pressure resistance rather than thermal resistance, expanding material selection flexibility.
Solution Approach 2:
Different parts of the autoclave system are assigned different functional qualities: the separating compartment is designed with thermal processing capabilities (heating elements, insulation) while the external shell is designed with pressure-containing properties (high strength, seamless construction). This local differentiation of functional qualities allows each component to be optimized for its specific role, enabling the external wall to use materials like stainless steel or aluminum alloys that excel in pressure resistance rather than thermal processing.
4Adaptability or versatility
If additional holes are created in the external structure for compartment implementation, then functional versatility is improved, but structural integrity and homologation complexity increase
Solution Approach 1:
The rectangular separating compartment is nested within the cylindrical autoclave in a concentric arrangement, with the compartment positioned inside the outer shell without requiring penetration or holes through the external structure. This nesting configuration allows the compartment to be integrated into the autoclave volume while preserving the continuity and integrity of the external pressure-containing shell, thereby maintaining structural strength and simplifying homologation procedures.
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 reduces energy consumption, allows for more efficient temperature control, and simplifies the design by enabling the use of alternative materials and eliminating the need for additional structural modifications, while maintaining pressure balance and optimizing space usage.
Implementation Method 1
the pressure set ensures that the internal pressure inside the separating compartment is the same as the external pressure directed towards the supporting walls
Implementation Method 2
the heating process can be performed until the operating temperature has been achieved
Implementation Method 3
the product is cooled by means of gas (dry process) or in a humid environment (by means of current or atomized water)
Data Source
AI summary
Cylinder-shaped autoclave comprising a light-in-structure separating compartment and preferably rectangular in shape, designed to host the baskets for the products to be processed. The separating compartment, lower in volume as compared to the cylinder-shaped autoclave and preferably rectangular in shape, reduces the volume to be heated and later cooled, with remarkable energy saving. Said compartment has a double worthiness in that it can be introduced and implemented in already existing autoclaves, besides being an integral part of those constructed ex-novo. When the process is activated, the pressure set ensures that the internal pressure inside the separating compartment is the same as the external pressure directed towards the supporting walls. By so doing, the compartment's structure is not affected by differing pressures. The above balance is made possible by means of at least one pressure sensor.