Nested-Pump Evaporator Design for Space-Efficient Steam Generation
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Solution Overview
Problem
Existing evaporator devices for steamers are inefficient in space utilization and steam production, with pumps often requiring significant installation space and causing temperature issues due to direct exposure to boiling water.
Innovation Solution
An evaporator device design featuring a water tank with an outer and inner encircling wall, where a pump is integrated within a dry inner zone, and a separate freshwater zone thermally insulated from the boiling water zone, allowing for efficient steam production and reduced heating effort, with a dividing wall to manage water flow and prevent overheating.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the pump is installed outside the water tank, then the pump has sufficient installation space, but the installation space of the evaporator device is reduced and the evaporator output is limited
Solution Approach 1:
The pump is nested within the water tank structure, specifically positioned in the inner zone surrounded by the inner wall. This allows the pump to be integrated into the evaporator device without occupying additional external space, thereby increasing the evaporator output while maintaining a compact overall structure.
2Device complexity
If the pump is directly exposed to the boiling water zone, then the pump can be simplified in structure, but the pump experiences excessive temperature stress and overheating
Solution Approach 1:
The water tank is segmented into distinct zones: an outer zone, a water zone containing boiling water, and an inner zone surrounded by the inner wall. The pump is positioned in the inner zone, which is thermally isolated from the boiling water zone by the inner wall structure. This segmentation allows the pump to have a simplified structure while protecting it from excessive temperature stress through spatial separation.
3Productivity
If the installation space is optimized by integrating the pump inside, then the evaporator can be larger and more powerful, but the pump may overheat due to proximity to boiling water
Solution Approach 1:
The pump is nested within the inner zone that is surrounded by the inner wall, creating a thermal barrier between the pump and the boiling water zone. This allows the evaporator to be optimized for higher output while the nested structure protects the pump from overheating through thermal isolation.
Solution Approach 2:
The inner wall structure acts as an intermediary element between the pump and the boiling water zone. It provides thermal isolation, allowing the pump to operate in a cooler environment while still being integrated within the evaporator device structure, thus maintaining reliability while achieving high productivity.
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 design enhances space efficiency, reduces temperature stress on the pump, and enables faster steam generation while preventing overheating and boiling dry, thus improving overall evaporator performance and safety.
Implementation Method 1
A heating device is provided on the outer wall, advantageously on the outside thereof, the heating device advantageously being of flat design... A water zone extending or formed between the outer wall and the inner wall contains the water to be evaporated
Implementation Method 2
A heating device is provided on the outer wall... the heating device advantageously being of flat design
Implementation Method 3
arranged within the zone is a pump, which serves to pump water from a water reservoir, which can be arranged outside the evaporator device, into the water zone
Implementation Method 4
Emerging upwards from the water zone there is furthermore a steam outlet, through which steam produced, which is formed, in particular, above the water zone and rises, is collected, accumulated and passed into the interior of the steamer or cooker
Data Source
AI summary
An evaporator device for water for installation in a steamer has a water tank having an encircling outer wall and an encircling inner wall, wherein a heating device is provided on the outer wall. The inner wall extends within the outer wall and with a clearance relative thereto, wherein a water zone is formed between the outer wall and the inner wall. A pump is arranged within the inner wall in order to pump water from a water reservoir into the water zone. A steam outlet emerges upwards from the water zone and leads into the steamer.