Self-Cleaning Piping Strainer Using Pressure-Differential Sensing
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Solution Overview
Problem
Conventional strainers in piping systems require shutdown and disassembly for cleaning, which disrupts fluid flow and is inefficient, especially when dealing with solids like particulate matter that need continuous removal without interrupting the pipeline operation.
Innovation Solution
A piping apparatus with a strainer housing and pressure sensors that allow for self-cleaning cycles using flushing valves, enabling the strainer to automatically switch between strainer elements and maintain fluid flow during cleaning, without the need for disassembly, by determining pressure differences and initiating cleaning cycles based on sensor data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the strainer is cleaned with disassembly, then the strainer element can be thoroughly cleaned, but the pipeline must be shut down and depressurized, causing loss of time and productivity
Solution Approach 1:
The strainer housing is divided into separate sections with a removable strainer element that can be accessed through a blow-down connection without removing the entire strainer from the pipeline. This segmentation allows the strainer element to be cleaned independently while the pipeline remains operational.
Solution Approach 2:
A blow-down connection serves as an intermediary access point that allows cleaning operations to be performed on the strainer element without requiring disassembly of the main strainer housing or shutdown of the pipeline. The blow-down connection mediates between the need for cleaning access and the requirement for continuous operation.
2Productivity
If a blow-down valve is used for cleaning without disassembly, then the pipeline can remain operational, but the valve requires manual operation and the cleaning process is less effective
Solution Approach 1:
Pressure sensors are installed in the strainer housing to monitor pressure differential across the strainer element. When the differential pressure exceeds a predetermined threshold indicating contamination, the system automatically initiates the cleaning cycle by actuating the blow-down valve, eliminating the need for manual operation.
Solution Approach 2:
The strainer system performs self-diagnosis through pressure sensing and self-cleaning through automatic valve actuation. The system monitors its own condition and executes cleaning operations autonomously without requiring manual intervention, thereby maintaining continuous pipeline operation while ensuring effective cleaning.
3Extent of automation
If pressure sensors are installed to enable automatic cleaning, then cleaning automation is improved, but the device complexity increases
Solution Approach 1:
The manual mechanical operation of the blow-down valve is replaced with an automated actuation system controlled by electronic pressure sensors and a control unit. This substitution enables automatic cleaning based on real-time pressure differential measurements, significantly improving automation while the modular design keeps the added complexity manageable.
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 continuous operation of piping systems by automatically removing contaminants and debris from strainers without shutting down the pipeline, improving maintenance efficiency and reducing downtime.
Implementation Method 1
the strainer housing includes one or more pressure sensors; wherein, when the strainer element is in the strainer branch, at least one pressure sensor is fixed to the strainer housing at a location upstream of the strainer element and/or is fixed to the strainer housing at a location downstream of the strainer element
Data Source
AI summary
A piping apparatus is provided, which comprises a strainer comprising a strainer housing including a strainer branch; wherein the strainer housing includes one or more pressure sensors; wherein, when a strainer element is in the strainer branch, at least one pressure sensor of the plurality of pressure sensors is fixed to the strainer housing at a location upstream of the strainer element and/or is fixed to the strainer housing at a location downstream of the strainer element.