Foam Spray Can Motor Pump Air Mixing
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Solution Overview
Problem
Existing foam spray cans require high-pressure gas injection to produce rich foam, which poses safety risks and inefficiencies, and often use excessive detergent, making them environmentally unfriendly.
Innovation Solution
A foam spray can design that mixes air and solution in a pipeline without high-pressure gas injection, using a motor pump and foaming tube to generate foam, with adjustable air-to-solution ratios and reduced detergent usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If high-pressure gas injection is used to increase pressure in the foam spray can, then rich foam can be produced, but safety risks and inconvenience are introduced
Solution Approach 1:
The patent replaces the mechanical high-pressure gas injection system with a motor pump-driven liquid-gas mixture circulation system. The motor pump draws air and liquid through a foaming tube, creating foam through mechanical mixing and aeration rather than high-pressure gas injection, thereby eliminating the safety risks associated with compressed gas while maintaining foam generation capability
Solution Approach 2:
The patent uses a motor pump to create a hydraulic circulation system that draws air and liquid through a foaming tube. The pump generates sufficient pressure to move the liquid-gas mixture through the foaming tube, creating foam through hydraulic action rather than pneumatic gas injection, thus achieving foam generation without the safety hazards of compressed gas
2Quantity of substance
If high-pressure gas injection is used to produce rich foam, then foam quantity increases, but detergent consumption increases and environmental friendliness decreases
Solution Approach 1:
The patent changes the operating parameters by using a motor pump to control the flow rate and pressure of the liquid-gas mixture through the foaming tube. This allows precise control over the amount of detergent used, preventing excessive consumption while still achieving rich foam generation. The system can adjust the pump speed and flow rate to optimize detergent usage efficiency
Solution Approach 2:
The patent replaces the high-pressure gas injection system with a motor pump-driven circulation system that uses minimal detergent. The motor pump creates sufficient pressure to move the liquid-gas mixture through the foaming tube, generating foam through mechanical aeration rather than requiring large amounts of detergent to compensate for gas injection inefficiencies
3Quantity of substance
If denser sponge is packed in the nozzle to produce large amount of foam, then foam quantity increases, but liquid flow resistance increases and requires higher pressure injection
Solution Approach 1:
The patent replaces the passive sponge-based foam generation system with an active motor pump-driven circulation system. The motor pump provides the necessary pressure to move the liquid-gas mixture through the foaming tube, eliminating the need for dense sponge packing that would create excessive flow resistance. The pump can adjust pressure levels to optimize foam generation without requiring extremely high pressures
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
Produces rich foam with significantly reduced detergent consumption and eliminates safety risks associated with high-pressure gas, while maintaining effective cleaning power and portability.
Implementation Method 1
a motor pump sucks air and solution and pumps out the liquid-gas mixture
Implementation Method 2
a motor pump sucks air and solution and pumps out the liquid-gas mixture
Implementation Method 3
a foaming tube, one end of which is connected to the motor pump, is used to transmit the liquid-gas mixture pumped by the motor pump and fully mix the air with the solution to produce foam
Implementation Method 4
fully mix the air with the solution to produce foam
Implementation Method 5
a nozzle is connected to the other end of the foaming tube for spraying foam
Data Source
AI summary
A foam spray can comprises a motor pump, a foaming tube and a nozzle. The motor pump can be used to suck air and solution and pump out the liquid-gas mixture. One end of the foaming tube is connected to the motor pump for transmitting the liquid-gas mixture pumped by the motor pump and fully mixing the air with the solution to produce foam. The nozzle is connected to the other end of the foaming tube to spray foam. The length of the foaming tube is between 10 to 500 cm, the tube inner diameter is between 0.8 to 20 mm, and the pressure of the liquid-gas mixture in the tube is between 8 to 32 PSI, thereby to provide sufficient time, space and conditions for the mixing of the air and the solution in the foaming tube to fully mix the air and the solution, and then to spray abundant foam from the nozzle.