Ozone Gas Inner Wall Surface Treatment Method
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The existing passivation method for treating the inner wall surface of pipes is complicated due to the stepwise increase of ozone concentration, which is not necessary for all applications and can lead to a decrease in ozone concentration and metal elution during surface treatment.
Innovation Solution
A method involving a pretreatment to detect abnormal parts on the inner wall surface, followed by a main treatment using an ozone gas with a concentration of 10% to 30% by volume and a temperature of 60° C or less, without stepwise concentration increase, to efficiently treat the inner wall surface of treatment objects like containers and pipes with metal walls.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If stepwise increase of ozone concentration is applied to passivate the inner wall surface, then the metal inner wall can be protected from corrosion, but the treatment process becomes complicated and time-consuming
Solution Approach 1:
The patent applies a preliminary action by performing a detection step before the main treatment. The inner wall surface is first examined to identify abnormal parts (corrosion, contamination, defects), and only then is the ozone gas treatment applied. This preliminary detection allows the subsequent treatment to be targeted and efficient, eliminating the need for complicated stepwise concentration increases while still achieving effective passivation and corrosion protection.
2Productivity
If high concentration ozone gas is used to treat the inner wall surface, then the treatment efficiency is improved, but the risk of metal elution and damage increases
Solution Approach 1:
The patent applies local quality by differentiating the treatment approach based on the condition of different parts of the inner wall surface. Abnormal parts (corrosion, contamination, defects) are detected and treated with appropriate ozone concentration and exposure time, while normal parts receive minimal or no treatment. This localized approach maintains high treatment efficiency for problematic areas while preventing excessive ozone exposure that could cause metal elution in already sound areas.
Solution Approach 2:
The patent applies parameter changes by dynamically adjusting ozone gas concentration and treatment time based on the detected condition of the inner wall surface. Rather than using a fixed high concentration that risks metal elution, the system modifies treatment parameters according to the actual state of the surface, achieving efficient treatment where needed while maintaining safety margins to prevent harmful metal elution.
3Reliability
If pretreatment is performed to detect abnormal parts, then the risk of abrupt heating and damage is reduced, but the total treatment time increases
Solution Approach 1:
The patent applies preliminary action by implementing a detection step before treatment to identify abnormal parts such as corrosion, contamination, or defects on the inner wall surface. This preliminary examination prevents abrupt heating and damage during subsequent ozone treatment by allowing the system to target only the necessary areas, thereby reducing the risk of damage while minimizing unnecessary treatment time on already sound surfaces.
4Reliability
If stepwise ozone concentration increase is implemented, then thorough passivation is achieved, but the process becomes less adaptable to different application requirements
Solution Approach 1:
The patent applies dynamics by making the treatment process adaptive rather than fixed. The ozone gas concentration, treatment time, and other parameters are dynamically adjusted based on the detected condition of the inner wall surface and specific application requirements. This dynamic approach allows the system to achieve thorough passivation when needed while being flexible enough to adapt to different scenarios, maintaining both high passivation quality and process versatility.
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 method allows for efficient treatment of the inner wall surface, suppressing ozone concentration decrease and preventing metal elution, while being easier to implement than the existing stepwise concentration increase process.
Implementation Method 1
distributing an ozone gas such that the ozone gas contacts the inner wall surface of the treatment object
Implementation Method 2
an ozone gas is applied to the inner surface of the pipe system to passivate the inner surface of the pipe system
Data Source
AI summary
A method for treating an inner wall surface of a treatment object uses a treatment object that is at least one of a container housing an ozone gas, a treatment container housing an object to be subjected to a surface treatment using an ozone gas and a pipe configured to supply an ozone gas. The method for treating an inner wall surface of a treatment object includes the steps of: determining whether an abnormal part is present in the inner wall surface of the treatment object or not; and distributing an ozone gas having a concentration of 10% by volume or more and 30% by volume or less and a temperature of 60° C. or less such that the ozone gas contacts the inner wall surface of the treatment object after the step of determining whether an abnormal part is present or not.