Portable Acid Descaling System for Heat Exchangers
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Solution Overview
Problem
Scale and mineral deposits on heat transfer surfaces of heat exchange equipment reduce efficiency, leading to increased operating costs and potential equipment failure, necessitating an effective descaling solution to maintain optimal operating conditions.
Innovation Solution
A portable descaling system using an acid-based solution is circulated through heat transfer systems, including tankless water heaters, to remove scale and mineral deposits, with pH monitoring ensuring the solution's strength and effectiveness, and subsequent neutralization and flushing to restore equipment efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a descaling system uses a fixed location installation, then it provides stable operation, but it reduces portability and increases installation complexity
Solution Approach 1:
The descaling system is divided into separate functional modules: a portable container for holding descaling solution, a separate pump unit for circulation, and flexible hoses for connection. This segmentation allows each component to be optimized independently while maintaining overall system portability and reliability.
Solution Approach 2:
The descaling system is designed to be universally applicable to various heat exchanger types and locations. The portable container and flexible connection system allow the same equipment to serve multiple functions and be deployed in different locations as needed, combining the stability of a complete system with the portability of movable components.
2Productivity
If the descaling system uses a large container capacity, then it reduces the frequency of refilling, but it increases the size and portability difficulty
Solution Approach 1:
The system uses a pump with variable flow rate capability that can be adjusted based on the container size and descaling requirements. This dynamic adjustment allows the system to maintain high productivity with smaller, more portable containers by optimizing the circulation speed and flow rate to match the available solution volume.
Solution Approach 2:
The descaling solution concentration and pump flow rate are optimized as adjustable parameters to maximize the effectiveness of smaller container volumes. By changing these operational parameters, the system achieves high descaling productivity without requiring large container capacities.
3Device complexity
If the system uses manual pH monitoring, then it reduces equipment complexity, but it increases the time required for descaling operations
Solution Approach 1:
The system incorporates pH monitoring with automatic feedback control that adjusts the descaling solution circulation and concentration maintenance without requiring constant manual intervention. This feedback mechanism maintains optimal pH levels automatically, reducing operational time while keeping the system relatively simple.
Solution Approach 2:
The descaling system includes automatic pH maintenance capabilities where the system self-regulates the chemical concentration and circulation parameters based on monitored conditions, eliminating the need for continuous manual checking and adjustment while maintaining optimal descaling performance.
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 system efficiently removes scale and mineral deposits, reducing energy costs, eliminating noise issues, and maintaining heat exchangers at design thermodynamic efficiency with minimal downtime, thereby extending equipment lifespan and performance.
Implementation Method 1
A motor driven circulating pump is mounted within a protective housing atop the cover for delivering descaling solution through the water side of a water heater
Implementation Method 2
A descaling chemical added to the container is circulated through internal piping of heat transfer system for removal of scale, corrosion deposits and sludge
Data Source
AI summary
A system for descaling heat exchanger surfaces using an acidic solution, the system comprising a portable machine of container and cover with operating components including motor driven circulating pump, hose fittings, directional valve, fluid openings, housing and hatch mounted on reinforced cover.