Flexible Transport Hose for In-Situ Explosive Boiler Cleaning
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Solution Overview
Problem
Conventional cleaning methods for incineration facilities are inefficient and hazardous, requiring operational interruptions, causing damage and high costs due to the use of explosives or bulky lances with limited reach and handling difficulties.
Innovation Solution
A flexible, elongate transport hose designed for the cleaning appliance that allows for easier access to hard-to-reach areas and simplifies handling by transporting an explosive mixture to the cleaning location, reducing the need for frequent relocation of the supply device and enhancing safety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional cleaning methods (boiler beating, steam jet blasters, water jet blasters, sand blasting) are used when installations are shut down, then cleaning can be performed, but operational interruption of several days or weeks is required, causing production losses and damage to container materials from temperature changes
Solution Approach 1:
The patent replaces conventional mechanical cleaning systems (boiler beating, steam jet blasters, water jet blasters, sand blasting) with an explosive cleaning system that uses controlled detonations to remove deposits. The explosive charge is transported via a flexible hose to the cleaning location inside the incineration facility, where it is ignited to create shock waves that detach fouling from surfaces. This substitution enables cleaning during operation without the need for shutdowns and complex mechanical equipment.
Solution Approach 2:
The patent changes the operational parameters by enabling cleaning during hot operation rather than during cold shutdown. The flexible transport hose and controlled explosive delivery system allow the cleaning process to be performed at high temperatures, eliminating the need for operational interruption and associated temperature cycling damage to container materials.
2Loss of time
If explosives are used for cleaning during operation, then cleaning time is significantly shortened and operational interruption is avoided, but high costs for explosive storage and handling, as well as safety risks, are incurred
Solution Approach 1:
The patent introduces a flexible transport hose as an intermediary device that delivers the explosive charge to the cleaning location inside the incineration facility. This allows the explosive to be introduced through existing openings without requiring complex installation of explosive delivery systems. The hose acts as a safe conduit that can be easily connected and disconnected, minimizing the time explosives are present in the facility and reducing handling risks.
Solution Approach 2:
The patent employs disposable explosive charges that are transported via the flexible hose and consumed during each cleaning operation. These single-use explosive elements eliminate the need for expensive, long-term storage of large explosive inventories. The flexible hose itself can be easily replaced or moved between different cleaning locations, providing economic flexibility.
3Ease of operation
If a flexible transport hose is used to transport explosive mixture, then accessibility to hard-to-reach areas is improved and handling is simplified, but the hose must withstand high temperatures and pressure from explosion
Solution Approach 1:
The patent employs a flexible transport hose made from materials capable of withstanding high temperatures and pressure. The hose is designed to be sufficiently flexible to reach difficult-to-access areas inside the incineration facility while maintaining structural integrity during explosive mixture transport and detonation. The flexible nature allows easy maneuvering and positioning at the cleaning location.
Solution Approach 2:
The transport hose is constructed from composite materials that combine flexibility with high temperature and pressure resistance. This allows the hose to bend and reach complex geometries while withstanding the extreme conditions of explosive delivery and detonation, resolving the contradiction between ease of handling and structural durability.
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
Enables efficient, safe, and flexible cleaning of incineration facilities without operational interruptions, reducing costs and improving accessibility to difficult areas within the facility.
Implementation Method 1
an explosive mixture is brought by way of a transport conduit to a cleaning location, where the explosive mixture is made to explode
Implementation Method 2
The heat surface caking is blown away due to the impact of the detonation, as well as due to the wall oscillations produced by the shock waves
Implementation Method 3
The introduction of explosive material into a hot container moreover necessitates an absolutely reliable and efficient cooling system, in order to prevent a premature detonation of the explosive
Data Source
AI summary
An appliance and a method for removing deposits from interiors of receptacles or facilities by way of explosion technology. The appliance includes a supply device for providing an explosive mixture or its starting components, as well as a transport conduit that is connected to the supply device and serves for transporting explosive mixture to a cleaning location. The transport conduit is designed at least in sections as a transport hose.