Street Drain Filter with Continuous Flushing Channel
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Solution Overview
Problem
Existing street gullies require complex maintenance procedures, as flushing hoses cannot be inserted without dismantling the filter, and filters often need to be handled simultaneously with flushing, leading to inefficiencies and potential blockages.
Innovation Solution
A street drain design featuring a continuous channel with a free cross-section of at least 100 mm diameter from the inlet to the sludge trap, allowing flushing hoses to be inserted without removing the filter, and a filter with an elongated cross-section that can be maintained separately from the flushing process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the filter is designed to occupy a large portion of the base body cross-section to ensure sufficient filtering effectiveness, then the filtering performance is improved, but the available space for a flushing channel is reduced, making it impossible to insert flushing hoses without removing the filter
Solution Approach 1:
The filter is divided into multiple filter elements arranged radially around the central flushing channel. This segmentation allows the filter to occupy a large portion of the base body cross-section for effective filtering while leaving a central space for the flushing channel, enabling both filtering performance and maintenance accessibility
Solution Approach 2:
The filter elements are arranged in a radial pattern around the central axis, utilizing the circumferential dimension rather than occupying the central space. This dimensional arrangement allows the filter to maximize its filtering surface area while preserving the central flushing channel, resolving the space conflict between filtering effectiveness and maintenance access
2Ease of operation
If the filter is removed to insert a flushing hose into the sludge trap, then the flushing operation can be performed, but the filter must be dismantled and reinstalled, increasing maintenance time and complexity
Solution Approach 1:
The flushing channel is extracted as a separate, independent space from the filter structure. The central channel provides direct access to the sludge trap without requiring removal of the filter elements, allowing flushing operations to be performed independently and simultaneously with filter maintenance if needed
Solution Approach 2:
The central flushing channel acts as an intermediary pathway that provides access to the sludge trap independent of the filter. This mediator structure allows flushing hoses to reach the sludge trap through the center of the filter assembly without disassembling the filter, separating the flushing function from the filter maintenance function
3Adaptability or versatility
If the filter and flushing operations are handled by different groups, then specialization is improved, but coordination complexity increases when both need to be performed
Solution Approach 1:
The maintenance functions are segmented into independent access paths: the filter can be removed from its radial positions for filter maintenance, while the central flushing channel remains accessible for sludge trap flushing. This segmentation allows different specialized groups to work independently on their respective tasks without interfering with each other, eliminating coordination complexity
Solution Approach 2:
The central flushing channel is pre-configured and always accessible, allowing flushing operations to be performed at any time without waiting for filter removal. This preliminary preparation of the flushing pathway enables different maintenance groups to work independently according to their schedules and requirements
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
Facilitates easy maintenance by enabling flushing and filter maintenance without disassembly, reduces filter blockages, and allows for standardized filter installation compatible with various flushing hoses, improving hydraulic performance and reducing maintenance complexity.
Implementation Method 1
water is passed through a filter material, so that, depending on the design of the filter material, at least a purely mechanical filtration is achieved and, for example, particles above a certain particle size are retained in the filter
Implementation Method 2
a corresponding settling chamber for sand and other heavy particles present in the water, preventing them from entering the sewer system
Data Source
Figure 1~2
Figure 3~5
AI summary
The invention relates to a street drain. The street drain has a cylindrical base body, an upper inlet designed to allow surface water to flow into the base body from above during use, a lateral outlet designed to allow water to flow out of the base body during use, a space referred to as a sludge trap, which is arranged in the base body and below the outlet, and a filter arranged in the base body, upstream of the outlet, and through which water can flow towards the outlet in such a way that water is guided through a filter material. According to the invention, a continuous channel with a free cross-section of at least 100 mm in diameter runs within the base body from the inlet to the sludge trap.