Silicate Pipe Treatment for Rapid Corrosion Film Formation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current methods for treating the interior surfaces of sanitary water pipes are inadequate in preventing corrosion, deposit formation, and contamination by micropollutants, with slow silicate film formation and insufficient control over environmental parameters, and fail to effectively address micro-leaks and pathogenic germ development.
Innovation Solution
A method involving the injection of a silicate treatment product at elevated concentrations and controlled temperature and flow rates outside normal network operation, followed by drying cycles, to rapidly form a protective silicate film that seals micro-perforations and reduces contamination, with optional acid cleaning and continuous silicate injection to maintain protection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If continuous injection of silicates is used to prevent corrosion, then protective film formation is achieved, but the film formation rate is too slow to effectively remedy corrosion problems
Solution Approach 1:
The patent changes the concentration parameter of silicates from routine levels (5 mg Si/L) to elevated levels (50-5000 mg Si/L) during the impregnation phase, which accelerates the film formation rate while still ensuring effective corrosion protection. This parameter change transforms the slow continuous treatment into a rapid impregnation process.
2Ease of manufacture
If acid cleaning is used to remove deposits, then cleaning effectiveness is improved, but micro-leaks appear as cleaning products dissolve blocking plugs
Solution Approach 1:
The patent applies preliminary anti-action by performing rapid impregnation with silicates immediately after acid cleaning, before micro-leaks can develop. The silicate solution quickly forms a protective film that seals potential micro-perforations, counteracting the harmful effect of acid cleaning dissolving blocking plugs.
3Reliability
If elevated silicate concentration is used to accelerate film formation, then food standards compliance may be compromised, but corrosion protection is improved
Solution Approach 1:
The patent uses periodic action by implementing a two-phase treatment: a first impregnation phase with elevated silicate concentrations (50-5000 mg Si/L) for rapid film formation, followed by a second maintenance phase with routine concentrations (5 mg Si/L) that comply with food standards. This periodic variation in concentration achieves both rapid protection and ongoing compliance.
4Reliability
If pipe replacement or sleeving is performed to repair micro-leaks, then leak repair is achieved, but the operation becomes extremely long and complex
Solution Approach 1:
The patent replaces the mechanical system of pipe replacement or sleeving with a chemical treatment system. Instead of physically accessing and repairing micro-leaks through complex mechanical operations, the invention uses chemical impregnation with silicates that circulate through the network and form protective films that seal micro-perforations in place, eliminating the need for mechanical repair interventions.
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 method rapidly forms a resistant silicate layer that prevents corrosion, reduces micropollutant migration, and limits pathogenic germ development, ensuring improved water quality and pipe protection while meeting food standards.
Implementation Method 1
The presence of silicates in water slows down corrosion by the formation of a thin protective film which is deposited on the interior surfaces of the pipes
Implementation Method 2
A known method for cleaning pipes is an injection of acids allowing the dissolution of deposits inside the pipes
Data Source
Figure 1
Figure 2~3
Figure 4~6
AI summary
Process for treating a domestic water circuit, comprising injecting a treatment product comprising silicates into water circulating in said circuit to form a film on the interior surfaces of said circuit, characterized in that the injection of the treatment product comprises at least one step of injecting silicates at a concentration between 100 and 200,000 milligrams per liter (mg/L) into the water circulating in said circuit for a period of between 10 minutes (min) and 24 hours (h), the water flow circulating in the circuit being adjusted within a range between 0.05 and 100 liters per minute (L/min) and the water temperature circulating in the circuit being adjusted within a range between 40 and 65°C.