Filter Housing Locking for Leak-Safe Water Maintenance
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Solution Overview
Problem
Existing leakage protection arrangements in water installations fail to minimize water loss during filter maintenance, as they often require manual shut-off at the main tap, leading to unintended water drainage and air ingress, which can be cumbersome and inefficient.
Innovation Solution
A leakage protection arrangement with a locking device that secures the housing cup in place until the shut-off is activated directly in front of the filter, utilizing a motor-controlled shut-off and a flow meter to prevent accidental removal and minimize water flow during maintenance, featuring a bypass system and pressure reducer to manage flow and pressure effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If manual shut-off at the main tap is used for filter maintenance, then the filter can be serviced, but significant water loss and air ingress occur
Solution Approach 1:
The system performs preliminary action by automatically closing the shut-off valve before the filter housing is removed for maintenance. The control unit detects when the housing cup is detached and triggers the shut-off valve to close in advance, preventing water loss and air ingress that would otherwise occur during filter servicing.
2Ease of manufacture
If manual shut-off at the main tap is used for filter maintenance, then the filter can be serviced, but water drainage and air ingress become cumbersome
Solution Approach 1:
The system provides self-service by automatically managing the shut-off valve operation during filter maintenance. When the housing cup is detached, the control unit automatically activates the shut-off valve without requiring manual intervention, eliminating the need for operators to manually close main taps and manage complex shutdown procedures.
3Ease of operation
If the housing cup can be removed freely, then filter access is easy, but accidental removal with shut-off open causes water loss
Solution Approach 1:
The system implements feedback by using a sensor to detect when the housing cup is detached from the housing. This detection signal is sent to the control unit, which then activates the shut-off valve to close, preventing water loss. The feedback loop ensures that the shut-off action is triggered only when actually needed, maintaining both accessibility and hydraulic integrity.
Data Source
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AI summary
A leakage protection arrangement for installation in a water installation upstream of one or more taps, comprising a housing; a shut-off valve for interrupting the water supply in the water installation; and a filter, which is arranged in a housing cup that can be detachably attached to the housing; characterized by a locking device for locking the housing cup in a position fixed to the housing, wherein the locking mechanism can be released by actuating the shut-off valve.