Vaporiser device for water
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Solution Overview
Problem
Existing evaporator devices for steam cookers are inefficient in heating water, as they require heating the entire volume of the water tank to produce steam, and lack a simple and practical design for optimal operation.
Innovation Solution
An evaporator device with a water container having an outer wall and an inner partition wall, where the inner area is larger than the outer area, allowing water to flow through channels from the inner area to the outer area, enabling efficient steam generation with automatic refilling and separate steam and water management, utilizing a thick-film heating device and steam guide for effective heat distribution and separation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If the entire volume of water in the water tank is heated, then sufficient steam can be generated, but the heating time and energy consumption increase significantly
Solution Approach 1:
The water tank is divided into two separate spaces by an inner partition: a first space containing a small volume of water that is directly heated by the heating element, and a second space containing the remaining water. This segmentation allows the system to heat only a portion of the water directly while the other portion is heated indirectly through heat transfer, thereby reducing heating time and energy consumption while still generating sufficient steam.
2Quantity of substance
If the entire volume of water in the water tank is heated, then sufficient steam can be generated, but the energy consumption increases significantly
Solution Approach 1:
The water tank is divided into two separate spaces by an inner partition: a first space containing a small volume of water that is directly heated by the heating element, and a second space containing the remaining water. This segmentation allows the system to heat only a portion of the water directly while the other portion is heated indirectly through heat transfer, thereby reducing heating time and energy consumption while still generating sufficient steam.
3Measurement precision
If a complex water level control system is implemented, then precise water level monitoring is achieved, but the device complexity increases
Solution Approach 1:
The system uses the natural physical behavior of water flow and steam generation to automatically maintain appropriate water levels. The first space contains enough water to sustain steam generation without requiring active monitoring or control mechanisms. Water refilling occurs automatically through the refill connection when the water level drops, eliminating the need for complex sensors, controllers, and monitoring systems while ensuring sufficient water is always available for steam production.
4Stability of the object's composition
If the inner partition is closely connected to the outer wall, then structural stability is improved, but the volume for steam generation and water circulation is reduced
Solution Approach 1:
The inner partition is positioned to define a first space with a specific volume that is sufficient for steam generation, rather than extending it to closely contact the outer wall. The partition provides structural support while leaving adequate volume in the first space for water circulation and steam generation. The annular support structure provides additional stability without compromising the functional volume.
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 reduces the volume of water that needs to be heated, allowing for efficient steam generation with automatic refilling and effective heat distribution, enhancing the operational efficiency and simplicity of the evaporator device and steam cooker.
Implementation Method 1
A heating device 17 is provided on the outside of the outer wall 15. In this outer area, water is heated and evaporated by the heating device to generate steam.
Implementation Method 2
At least one passage channel 27 is provided in the inner partition 25 for a water flow between the inner and outer areas
Implementation Method 3
The water flow from the inner area to the outer area is driven by the water level difference and pressure gradient between the two areas
Implementation Method 4
Heat is transferred from the heated water in the outer area to the water in the inner area through the partition wall by thermal conduction
Data Source
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AI summary
An evaporator device for water for a steam cooker has a water container with an outer wall on which a heating device is provided on the outside. An internal partition is provided in the water tank, spaced from the outer wall, and defining an interior area in the water tank. An outer area is formed between the inner partition wall and the outer wall. The water tank is closed except for a water inlet into the interior and a steam outlet from the exterior, wherein it has at least one passage channel for water to flow between the interior and the exterior. The inner partition and the outer wall can be configured concentrically to one another in the manner of standing tube sections.