Inlet Baffle Assembly with Moveable Section for Grease Interceptor
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Solution Overview
Problem
Existing grease interceptors face challenges in efficiently separating fats, oils, and grease (FOG) from wastewater, controlling flow rates, and clearing blockages, particularly in larger systems, where prior art removable baffles often fail to provide accessible cleaning and are obstructed by external objects.
Innovation Solution
An inlet baffle assembly with a moveable section and flow control orifice that allows for efficient FOG separation, controls flow rates to prevent turbulent flow, and enables easy cleaning and inspection, allowing for blockage clearance without additional access means, and accommodates alternate orifice plates for managing flow rates.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If removable baffles are used to allow cleaning within the interceptor, then accessibility for cleaning is improved, but the baffles are often obstructed by external objects or elements and do not provide access to fluid channels within inlet assemblies
Solution Approach 1:
The inlet baffle assembly is divided into a fixed portion and a movable portion that can be independently manipulated. The movable portion includes a handle that extends through the wall, allowing operators to access and move the baffle section without needing to reach into the interceptor chamber, thereby avoiding obstruction by external objects while maintaining cleaning accessibility.
Solution Approach 2:
A handle mechanism acts as an intermediary between the operator and the movable baffle portion. The handle extends through the wall and connects to the movable portion via a linkage system, allowing the operator to move the baffle for cleaning access without directly reaching into the chamber where external objects might obstruct access.
2Productivity
If flow control devices are used to manage the flow rate of fluid entering the interceptors, then flow rate control is improved, but the devices are often at risk of being blocked by foreign object debris
Solution Approach 1:
The flow control function is moved from a horizontal orientation (within the chamber) to a vertical orientation (on the movable baffle portion). The orifice plate is positioned on the movable portion that can be tilted and raised, changing the dimensional aspect of flow control from horizontal to vertical, which allows gravity and flow direction to work in favor of preventing debris blockage.
Solution Approach 2:
The flow control device is made dynamic rather than static. The movable baffle portion can be tilted and raised to different positions, allowing the orifice plate to be moved from a horizontal flow path to a vertical position where debris is less likely to cause blockage. This dynamic positioning capability enables the system to adapt to varying flow conditions and debris loads.
3Ease of repair
If the inlet baffle assembly is designed with a movable section for cleaning access, then ease of maintenance is improved, but the structure becomes more complex
Solution Approach 1:
The inlet baffle assembly is segmented into a fixed portion and a movable portion that can be independently moved. This segmentation allows the movable portion to be accessed for cleaning while the fixed portion remains in place, simplifying maintenance operations without requiring complete disassembly of the entire assembly.
Solution Approach 2:
The movable portion serves multiple functions: it acts as a baffle to control flow patterns, provides access to the inlet chamber for cleaning, and houses the flow control orifice plate. This multi-functionality reduces the need for separate components, thereby limiting the increase in structural complexity while achieving ease of maintenance.
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 inlet baffle assembly effectively separates FOG from wastewater, controls flow rates to optimize separation, and facilitates easy cleaning and maintenance, ensuring efficient operation and reduced risk of blockages in grease interceptors.
Implementation Method 1
a flow control orifice associated with the inlet baffle to limit the rate of flow of wastewater through the flow channel
Implementation Method 2
The inlet baffle assembly effectively separates FOG from wastewater, controls flow rates to optimize separation
Implementation Method 3
controls the rate of flow into the grease collecting chamber to achieve desirable flow rates which permit efficient FOG separation
Data Source
AI summary
There is an inlet baffle assembly for use in an in-line interceptor for separating FOG from wastewater and a method of cleaning the inlet baffle assembly without the need for removal from the interceptor. The inlet baffle assembly has an inlet baffle for the grease collecting chamber of an in-line interceptor which defines a flow channel through which influent enters the collecting chambers and has a moveable section moveable between open and closed positions. The inlet baffle assembly also has a flow control element to control the rate of flow of influent entering the flow channel when the moveable section is in the closed position. The flow control element is accessible for cleaning when the moveable section is in the open position. After cleaning, the moveable section is moved into the closed position to facilitate fluid flowing through the inlet baffle assembly into the grease collecting chamber.