Vacuum Filter Valve Mechanism for Rapid Pressure-Pulse Cleaning
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Solution Overview
Problem
Suction appliances for cleaning, such as vacuum cleaners, experience reduced suction power due to dirt accumulation on filters, which leads to decreased negative pressure and impaired cleaning efficiency.
Innovation Solution
Incorporating an energy storage device that supplies energy to overcome the suction force, allowing the valve body to quickly transition from a closed to an open position, creating a pressure surge for effective filter cleaning and maintaining improved suction during operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the valve body is transferred quickly from closed to open position using an energy storage device, then the pressure surge and filter cleaning effectiveness are improved, but the device complexity increases
Solution Approach 1:
The energy storage device is pre-loaded with energy (e.g., compressed spring) before the cleaning operation. When the valve body needs to be opened, the stored energy is rapidly released to overcome the suction force and quickly transfer the valve body from closed to open position, generating a strong pressure surge for effective filter cleaning.
Solution Approach 2:
The system transitions from a static valve mechanism to a dynamic one where the valve body can be rapidly actuated. The energy storage device enables the valve body to move quickly against the suction force, creating a dynamic pressure surge that effectively cleans the filter, rather than relying on slow manual or gradual opening.
2Productivity
If external air flows quickly into the suction chamber to create a pressure surge, then the filter cleaning effectiveness is improved, but the suction operation stability deteriorates
Solution Approach 1:
The system operates in periodic cycles: during normal suction operation, the valve body remains closed maintaining stable suction; when filter cleaning is needed, the energy storage device rapidly opens the valve body allowing external air to surge into the suction chamber for filter cleaning; after cleaning, the valve body closes again to resume stable suction operation. This periodic operation separates the cleaning function from the suction function in time.
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 energy storage device enables rapid and effective filter cleaning, enhancing suction power by ensuring a strong pressure surge on the filter, thereby maintaining efficient cleaning performance.
Implementation Method 1
the suction appliance comprises an energy storage device to which energy that is to be stored can be supplied by actuating the actuating member, and from which stored energy can be released for transferring the valve body from the closed position to the open position
Implementation Method 2
The dirt collecting container can be acted upon with negative pressure via the suction chamber. This allows negative pressure to be generated at the suction inlet, in order to suck in suction material
Implementation Method 3
External air, for example, under atmospheric pressure, can flow into the suction chamber through the open external air inlet and act upon the filter to be cleaned on the clean-space side. Owing to the difference between the pressure of the external air and the negative pressure prevailing in the dirt collecting container, the filter to be cleaned is subjected to a pressure surge
Data Source
AI summary
Suction appliance for cleaning purposes, comprising a dirt collecting container with a suction outlet on which a filter is held, a suction unit for acting upon the dirt collecting container with negative pressure, a suction chamber between the suction unit and the filter with an external air inlet, via which external air can flow into the suction chamber to act upon the filter on the clean-space side, a valve device with a valve seat forming the external air inlet, a movable valve body to seal and release the valve seat, and an actuating member to cause the valve body to be transferred from a closed position to an open position. The appliance can comprise an energy storage device, to which energy to be stored can be supplied by actuating the actuating member. Stored energy can be released for transferring the valve body from the closed position to the open position.