Airborne Particulate Suppression System for DPF Cleaning
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Solution Overview
Problem
Current methods for cleaning diesel particulate filters (DPF) during maintenance release soot into the air, posing health risks and reducing environmental benefits, as they fail to effectively capture airborne particulates during the cleaning process.
Innovation Solution
An airborne particulate suppression system that includes a containment area with an air inlet and outlet, a supply basin for a scrubbing agent, and a coil with spray nozzles to spray the agent onto air containing soot, capturing particulates and preventing their release into the atmosphere, with the option to recycle the scrubbing agent for continuous use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional cleaning techniques are used to clean DPF devices, then the filters can be cleaned and reused, but soot is released into the air causing health risks and environmental harm
Solution Approach 1:
The patent introduces a containment enclosure as an intermediary between the DPF cleaning process and the surrounding environment. This enclosure captures airborne soot particles generated during cleaning operations, preventing their release into the atmosphere while allowing the cleaning process to proceed effectively. The mediator (enclosure) enables the beneficial reuse of DPF filters without the harmful environmental side effects.
Solution Approach 2:
The patent converts the harmful airborne soot particles into a contained, manageable form by capturing them within the enclosure. The soot that would otherwise be harmful is now trapped and can be collected or filtered, transforming the cleaning process from a source of environmental pollution to a controlled operation that maintains both filter reusability and air quality.
2Productivity
If cleaning operations are performed without containment, then the process is simple and quick, but airborne particulates are released into the environment
Solution Approach 1:
The containment enclosure serves as a mediator that does not significantly impede the cleaning operation's efficiency while effectively capturing airborne particulates. The enclosure is designed to allow easy access for cleaning activities while maintaining containment, thus preserving productivity while eliminating harmful emissions.
3Object-generated harmful factors
If a containment system with spray nozzles is used to capture soot, then airborne particulates are effectively captured, but the system complexity increases
Solution Approach 1:
The patent employs spray nozzles that utilize pneumatic or hydraulic principles to generate fine mist or spray patterns for capturing airborne soot. This approach is more effective than simple mechanical barriers while remaining relatively simple in implementation. The spray system leverages fluid dynamics to create an effective containment atmosphere without requiring complex mechanical moving parts or control systems.
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
Effectively captures airborne soot and other contaminants during DPF cleaning, maintaining air quality and extending the lifespan of HEPA filters by keeping them cleaner, while ensuring a safer working environment and maintaining the environmental benefits of reusing DPF devices.
Implementation Method 1
a coil having a plurality of spray nozzles to spray the scrubbing agent into the containment area
Implementation Method 2
spray the scrubbing agent from the plurality of spray nozzles and onto the air with soot to clean the air of the soot
Data Source
AI summary
An airborne particulate suppression system is disclosed as it may be implemented for cleaning diesel particulate filter (DPF) devices. In an example, the airborne particulate suppression system includes a containment area having an air inlet to receive air containing soot and an air outlet to exhaust air cleaned of the soot. The airborne particulate suppression system includes a supply basin for a scrubbing agent. The airborne particulate suppression system also includes a coil having a plurality of spray nozzles to spray the scrubbing agent into the containment area. A pump provides the scrubbing agent to the coil at a pumping rate configured to spray the scrubbing agent from the plurality of spray nozzles and onto the air with soot to clean the air of the soot.