Multi-Section Solid Material Container for Constant Vapor Concentration
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Solution Overview
Problem
Existing solid material containers face issues with inconsistent solid material concentration due to pressure loss, uneven evaporation, and labor-intensive filling processes, leading to inefficient supply and increased material waste.
Innovation Solution
A solid material container design with multiple filling sections and a carrier gas flow path that ensures consistent evaporation and saturation concentration, featuring a first, second, and third filling section with controlled gas flow and partitioning, allowing for easy filling and reduced weight, while maintaining uniform vapor concentration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If carrier gas flows through the solid material in a single filling section, then the solid material can be evaporated and supplied, but pressure loss occurs and the concentration of solid material becomes insufficient
Solution Approach 1:
The container is divided into multiple filling sections (first, second, and third filling sections) with partition walls between them. The carrier gas flows sequentially through each section, allowing the solid material to be evaporated in stages. This segmentation prevents excessive pressure loss while maintaining sufficient solid material concentration in the carrier gas as it progresses through each section.
2Productivity
If the solid material filling height in the container becomes lower as the solid material is consumed, then the container can be emptied, but the flow path is shortened and contact time between carrier gas and solid material is reduced
Solution Approach 1:
Multiple filling sections are arranged vertically with partition walls, creating independent evaporation zones. As the solid material level decreases in lower sections, the carrier gas continues to flow through upper sections that still contain solid material, maintaining the flow path length and contact time. This allows continuous supply at consistent concentration throughout the evaporation process.
3Productivity
If the linear velocity of the carrier gas becomes fast to increase supply rate, then more solid material can be supplied, but the carrier gas swirls up the solid material and particles are supplied to subsequent stages
Solution Approach 1:
The multiple filling sections create a staged evaporation process where the carrier gas velocity is effectively reduced in each section. The solid material evaporates progressively as the gas flows through each section, preventing the high-velocity swirling that would occur in a single-section design. This maintains film uniformity while achieving the required supply rate.
Solution Approach 2:
The invention changes the flow dynamics by dividing the container into multiple sections, which alters the velocity profile of the carrier gas. The gas velocity is distributed across multiple shorter paths, reducing the linear velocity in each section and preventing solid material particles from being swirled up, while still achieving the desired overall supply rate.
4Productivity
If heat is inputted from outside the container to evaporate the solid material, then the solid material can be supplied, but the portion in contact with the container wall is heated most and evaporates first, forming a gap that inhibits further heat input
Solution Approach 1:
The container is divided into multiple filling sections with partition walls, which distributes the heat input more evenly. The solid material in different sections evaporates at different rates, preventing the formation of a large gap between the solid material and container wall. This maintains continuous thermal contact and consistent vapor pressure throughout the evaporation process.
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
The design enables continuous supply of solid material vapor at a constant concentration, reduces material waste, and simplifies filling and maintenance, while minimizing pressure loss and particle generation.
Implementation Method 1
a solid material container for supplying a solid material housed inside by evaporating the solid material
Implementation Method 2
the solid material which is entrained by the carrier gas
Implementation Method 3
a heater that heats the container and the solid material inside
Implementation Method 4
These materials generally have very high melting points and low vapor pressures, and therefore have to be evaporated/sublimated
Data Source
AI summary
A solid material container for supplying solid materials housed inside by evaporating the solid materials, and includes a carrier gas introduction line, a first filling section that is filled with the solid material, a second filling section that is located in at least a part of an outer periphery of the first filling section, and is filled with the solid material, at least one tray-shaped third filling section that is disposed on the ceiling side of an interior of the solid material container, and a solid material lead-out line.