Liquid Filter Sealing Device for Contamination-Free Exchange
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Solution Overview
Problem
Conventional filter installations for liquids, such as brine, face issues with safe filter exchange and require significant space due to the need for protective pipes that protrude over the liquid surface, leading to potential contamination and inefficiency.
Innovation Solution
A filter installation with a sealing device that allows filters to be lowered and removed straight up, eliminating the need for external protective pipes and ensuring the filter's inner space remains sealed during exchange, using a rod-shaped element with a slide valve and bayonet lock for secure sealing and easy operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a protective pipe is used to surround the filter during removal, then the filter can be removed from the liquid, but the pipe protrudes over the liquid surface and covers the filter in the operating position, reducing effective filter length and requiring more space
Solution Approach 1:
The protective pipe is completely removed from the system. Instead of using a pipe to protect the filter during removal, the invention uses a sealing device that allows the filter to be lowered and removed directly without any protective pipe structure, thereby eliminating the space occupation and length reduction problems
Solution Approach 2:
The filter is lowered vertically into the liquid basin rather than being removed horizontally through a protective pipe. This vertical movement approach allows the filter to be completely submerged and sealed during removal, eliminating the need for a protective pipe structure that would protrude above the liquid surface
2Ease of repair
If the filter is pulled out of the protective pipe for cleaning, then the filter can be accessed, but filtered material can fall into the pipe and be sucked in by the brine pump after reinsertion
Solution Approach 1:
The sealing device is activated before the filter is removed from the liquid basin. This preliminary sealing action prevents any liquid or filtered material from entering the filter interior during the removal and cleaning process, ensuring that when the filter is reinserted, no contamination has occurred
Solution Approach 2:
The sealing device acts as an intermediary barrier between the liquid basin and the filter interior during removal and cleaning operations. This sealing mechanism prevents direct contact between the liquid environment and the filter interior, blocking the path for filtered material to enter the filter
3Productivity
If two flat filters are arranged parallel to one another, then the brine can be filtered, but the filters become blocked and require manual removal and cleaning
Solution Approach 1:
The filter is designed to be movable between a horizontal operating position and a vertical removal position. This dynamic configuration allows the filter to be easily lowered into the liquid basin for operation and pulled out vertically for cleaning, eliminating the need for manual removal of blocked filters
Solution Approach 2:
While one filter is being cleaned vertically, the other filter continues to operate horizontally, filtering brine continuously. This allows uninterrupted filtering operation during maintenance activities, maintaining productivity while enabling easy filter cleaning
Data Source
AI summary
Filter installation for liquids, including a basin with at least one closable suction opening, and a filter, which has a filter element and, from a removal position above the liquid can be lowered in a straight line to an operating position assigned to the suction opening. The suction opening, in an operating position of the filter, communicates with an inner space of the filter and, is connected essentially only through the filter element with liquid outside of the filter. There is a sealing device, which, during the lowering of the filter, while an external side of the filter is in contact with the liquid in the basin, seals the inner space of the filter from the liquid in the basin, so that the inner space of the filter is connected essentially only through the filter element with the liquid outside of the filter.