Reverse Air Jet Filter Sleeves for Low-Pressure Vacuum Cleaning
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Solution Overview
Problem
Industrial vacuum cleaners face frequent filter clogging due to the inefficiency of existing reverse air jet filter cleaning devices, which require high-pressure compressed air, leading to increased energy consumption, weight, and condensation issues, as well as ineffective cleaning of filter bottoms.
Innovation Solution
The vacuum cleaner incorporates sleeves connecting emission ducts directly to filters, using a low-pressure secondary reverse air jet and a piston with elastic return means to control port opening and closing, allowing effective cleaning without high pressures and minimizing condensation risks, along with a blower and motorized filter shaker for enhanced cleaning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If high-pressure compressed air is used for filter cleaning, then cleaning effectiveness is improved, but energy consumption increases and condensation problems occur
Solution Approach 1:
The invention extracts the harmful high-pressure compressed air system from the vacuum cleaner and replaces it with a low-pressure alternative using ambient air or a simple blower, thereby eliminating the energy consumption and condensation problems while maintaining cleaning effectiveness through the sleeve port mechanism
Solution Approach 2:
The sleeve with movable ports acts as an intermediary mechanism that directs low-pressure air flow precisely onto the filter surface, enabling effective cleaning without requiring high-pressure compressed air, thus resolving the contradiction between cleaning effectiveness and energy consumption
2Reliability
If high-pressure compressed air is used for filter cleaning, then cleaning effectiveness is improved, but the device weight increases
Solution Approach 1:
The heavy compressed air storage tank and compressor system is extracted from the device, replacing it with a lightweight blower or ambient air source, thereby significantly reducing device weight while maintaining filter cleaning effectiveness through the innovative sleeve port delivery mechanism
3Reliability
If high-pressure compressed air is used for filter cleaning, then cleaning effectiveness is improved, but condensation and humidity problems occur
Solution Approach 1:
The compressed air storage system that generates condensation is extracted and replaced with a low-pressure air delivery system using a blower or ambient air, eliminating the source of condensation and humidity while maintaining filter cleaning effectiveness through precise air flow direction via the sleeve ports
4Volume of stationary object
If emission ducts are placed far from filters, then chamber space is optimized, but cleaning effectiveness at filter bottom decreases
Solution Approach 1:
The invention transitions from a single fixed emission duct to a distributed array of ports within the sleeve that contacts the filter surface, effectively delivering cleaning air from multiple positions simultaneously, thereby maintaining cleaning effectiveness across the entire filter surface while allowing the emission mechanism to be positioned within the available chamber space
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 enables effective filter cleaning with lower energy consumption, reduced weight, and prevention of condensation, making the device more economical and adaptable to various vacuum cleaners, including those with limited electricity supplies.
Implementation Method 1
a reverse air jet filter cleaning device that, by means of a compressor, generates a high-pressure jet of air adapted to strike each of said filters in turn, thereby cyclically freeing them from the dust that has accumulated thereon
Implementation Method 2
a chamber placed under vacuum conditions by an intake turbine and a dust-laden air intake chamber for collecting and accumulating said dust once it has been separated from the air flow drawn up
Data Source
Figure 1~2
Figure 3~5
Figure 6~11
AI summary
The present invention relates to the industrial vacuum cleaner sector. In particular, the invention relates to a vacuum cleaner (1) with a reverse air jet filter cleaning device comprising suction means (2) of known type associated with a vacuum chamber (3) and activated by a control unit, cartridge filter means (5) to filter a primary flow of dust-laden air (F) connected to said chamber (3), and containment means (4) to contain the dust drawn up and retained by said filter means. Said reverse air jet filter cleaning device comprises feed means (6) to feed a secondary reverse air jet (F'), emission ducts (8) connected to said feed means (6), and solenoid control valves (7) associated with said emission ducts (8) and that can be selectively activated by said control unit. Furthermore, said filter cleaning device comprises sleeves (9), connected between said emission ducts (8) and said filter means (5), and each sleeve (9) comprises a plurality of ports (11) adapted to place the inside of the sleeve (9) in communication with said vacuum chamber (3) to ensure suction of the primary flow of dust-laden air (F), wherein said sleeve (9) comprises movable means slidingly associated therewith, adapted to reversibly close said ports (11) during cleaning of said filter means (5) and to simultaneously allow the passage of said secondary reverse air jet.