Air Filtration Assembly With Shiftable Filter Element
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Solution Overview
Problem
Existing vacuum operated waste collection systems require frequent interruptions for filter cleaning, leading to energy losses and potential system malfunctions due to clogged filters.
Innovation Solution
An improved assembly with a shiftable member and air filtering elements in the air evacuation duct allows for continuous operation and self-cleaning, enabling uninterrupted waste transport and efficient air filtering by positioning gate or duct blocking portions to control vacuum air flow.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If filter units are provided inside or in immediate association with the container for filtering air evacuated from the container, then the fans and blowers are protected and effective operation is secured, but the entire system operation must be interrupted during cleaning of the filter elements
Solution Approach 1:
The filter unit is divided into a fixed housing portion and a movable filter element portion. The filter element can be independently removed and cleaned without affecting the housing or requiring system shutdown, allowing continuous operation while maintaining fan protection.
Solution Approach 2:
The filter element is designed to be pre-positioned in the housing and automatically sealed upon insertion. This preliminary positioning allows the filter to be quickly installed or replaced without requiring precise alignment during system operation, enabling rapid maintenance without full system interruption.
2Loss of energy
If filter elements are cleaned frequently or at regular intervals, then excessive energy losses and severe malfunction are prevented, but system operation is repeatedly interrupted
Solution Approach 1:
The filter element is extracted as a separate, removable component from the housing. This allows the filter to be cleaned or replaced independently without shutting down the entire system, thereby preventing energy losses from clogged filters while minimizing operational time loss through quick maintenance procedures.
Solution Approach 2:
The filter element design incorporates features that facilitate self-cleaning or easy maintenance by operators. The removable structure allows quick access for cleaning without requiring system shutdown, enabling frequent maintenance to prevent energy losses while minimizing operational interruptions.
3Duration of action of stationary object
If clogged filters are not cleaned, then continuous operation is maintained, but excessive energy losses and severe malfunction occur
Solution Approach 1:
The removable filter element enables continuous filtering action without system shutdown. The filter can be quickly cleaned or replaced during operation, ensuring continuous air filtration and preventing the energy losses associated with clogged filters while maintaining uninterrupted waste transport.
Solution Approach 2:
The filter element is designed for preliminary positioning with automatic sealing features, allowing rapid installation of pre-cleaned filters. This enables quick replacement during operation to prevent energy losses from clogging while maintaining continuous system operation.
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
This solution allows for uninterrupted waste transport during filter cleaning, reduces energy losses, and minimizes the risk of system stoppages by enabling continuous air filtration and efficient vacuum air flow control.
Implementation Method 1
a control means (12) is installed in the housing with a shiftable member (13) intersecting the inner housing passage, the shiftable member (13) having one or more air filtering elements (14)
Implementation Method 2
The shiftable member is linearly displaceable in a direction generally transversal to the inner passage in the assembly housing for positioning a selected gate portion or a duct blocking portion in line with and intersecting the inner passage
Data Source
Figure 1
Figure 2~3
Figure 4
AI summary
In an assembly (10) for controlling filtering of vacuum air flow (AF) evacuated from a system storage container (2) through an air evacuation duct (4) in vacuum operated waste collection systems (1), an assembly housing (11) is installed stationary in the air evacuation duct with an inner passage in the assembly housing communicating with the air evacuation duct, a control means (12) is installed in the assembly housing with a shiftable member intersecting the inner passage in the housing, whereby the shiftable member has one or more air filtering elements and the air filtering element(s) being movable in a direction generally transversal to the inner passage in the assembly housing.