Ozone Concentration via Buffer Tank Extraction
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Solution Overview
Problem
Existing methods for concentrating ozone gas, such as those using vacuum pumps, face issues with ozone resistance and increased maintenance frequencies, leading to unstable operation.
Innovation Solution
A method and apparatus that adsorb ozone gas onto an adsorbent in an adsorption vessel and then desorb it using a pressure difference between a concentration vessel and the adsorption vessel, avoiding the need for ozone to pass through a pressure-reducing device, thereby reducing maintenance needs and ensuring stable operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If a vacuum pump is used to reduce pressure in the adsorption column for desorbing ozone gas, then ozone gas can be concentrated, but the ozone gas passes through the pump causing ozone resistance and increased maintenance frequency
Solution Approach 1:
The invention extracts the harmful interaction between ozone gas and the vacuum pump by introducing a buffer tank between the adsorption column and the pump. The buffer tank receives desorbed ozone gas before it reaches the pump, effectively separating the ozone-containing stream from the pump mechanism and eliminating ozone resistance issues.
Solution Approach 2:
The buffer tank serves as an intermediary component in the system. It receives desorbed ozone gas from the adsorption column and delivers it to the vacuum pump, acting as a protective mediator that prevents direct contact between ozone gas and pump components, thereby reducing maintenance requirements.
2Object-affected harmful factors
If special material components are selected for the vacuum pump to resist ozone, then ozone resistance improves, but maintenance frequency and operational complexity increase
Solution Approach 1:
The invention removes the need for special ozone-resistant materials in the pump by physically separating the ozone gas stream from the pump through the buffer tank. This extraction approach eliminates the requirement for specialized components, simplifying the overall system design while maintaining ozone resistance.
3Quantity of substance
If pressure is reduced in the adsorption column to desorb ozone, then ozone concentration increases, but the desorbed ozone passes through the pump exposing it to ozone resistance
Solution Approach 1:
The buffer tank functions as an intermediary that receives desorbed ozone gas and protects it from direct exposure to the vacuum pump. This intermediary structure allows pressure reduction for ozone concentration while preventing the desorbed ozone from contacting pump components, thereby reducing maintenance frequency.
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 approach allows for the concentration of ozone gas with reduced maintenance requirements and ensures stable operation by avoiding the use of ozone-resistant pumps, thus extending equipment lifespan and improving operational reliability.
Implementation Method 1
allowing ozone gas to be adsorbed onto the adsorbent by introducing ozone gas-containing raw material mixed gas into an adsorption vessel that houses an adsorbent for adsorbing ozone gas
Implementation Method 2
introducing concentrated mixed gas including ozone gas with a higher ozone gas concentration than the ozone gas concentration in the raw material mixed gas into the concentration vessel by desorbing the ozone gas adsorbed onto the adsorbent using a pressure difference between the internal pressure of the concentration vessel and an internal pressure of the adsorption vessel
Data Source
AI summary
Provided is method for concentrating ozone gas the method including the steps of: allowing ozone gas to be adsorbed onto the adsorbent by introducing ozone gas-containing raw material mixed gas into an adsorption vessel (20) that houses an adsorbent for adsorbing ozone gas; reducing a pressure in a concentration vessel (30) in a state where the concentration vessel (30) does not communicate with the adsorption vessel (20), the concentration vessel (30) being configured to be connected to the adsorption vessel (20) so as to be interswitchable between a state where the concentration vessel (30) communicates with the adsorption vessel (20) and a state where the concentration vessel does not communicate with the adsorption vessel (20); and introducing concentrated mixed gas including ozone gas with a higher ozone gas concentration than the ozone gas concentration in the raw material mixed gas into the concentration vessel (30) by desorbing the ozone gas adsorbed onto the adsorbent using a pressure difference between the internal pressure of the concentration vessel (30) and an internal pressure of the adsorption vessel (20) in a state where the concentration vessel (30) having a reduced internal pressure communicates with the adsorption vessel (20) that houses the adsorbent onto which the ozone gas is adsorbed, and delivering the desorbed ozone gas into the concentration vessel (30). Also provided is an apparatus (1) for concentrating ozone gas for implementing the method.