Aerosol Pressure Control Valve for Tool Cooling Stability
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Solution Overview
Problem
Existing aerosol generators face challenges in maintaining consistent aerosol quality and pressure control, leading to uneven cooling of tools due to fluctuations in aerosol generation and pressure differences, especially when dealing with small cooling channel diameters and alternating tool usage.
Innovation Solution
The device incorporates an aerosol pressure control valve and a control unit to set and regulate a target aerosol pressure in the container, allowing for continuous aerosol generation with consistent quality, and includes a gas pressure control valve to adjust the Venturi nozzle pressure, ensuring efficient aerosol delivery and pressure management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If the aerosol pressure in the container is increased to provide sufficient cooling liquid through small cooling channels, then the cooling effectiveness is improved, but the pressure relief achieved by discharging aerosol is insufficient and pressure fluctuations occur
Solution Approach 1:
The aerosol discharge function is segmented into two independent paths: one through the aerosol consumer (tool) for cooling, and another through the pressure control valve for pressure regulation. This allows the system to simultaneously achieve cooling and pressure stabilization without interference between these functions.
Solution Approach 2:
The pressure control valve acts as an intermediary component that specifically manages pressure relief without affecting the cooling function. It provides an additional discharge path that regulates pressure independently, preventing pressure fluctuations while maintaining cooling effectiveness through the primary aerosol discharge path.
2Manufacturing precision
If clocked aerosol generation is performed to maintain consistent aerosol quality, then the volume fraction of liquid remains constant, but pressure fluctuations occur leading to uneven cooling
Solution Approach 1:
The system separates aerosol generation (continuous) from aerosol discharge (controlled through multiple paths). The pressure control valve provides a continuous pressure relief path that compensates for the intermittent discharge through the tool, maintaining stable pressure and uniform cooling while allowing continuous high-quality aerosol generation.
Solution Approach 2:
The system changes the pressure parameter dynamically by introducing a controllable pressure relief path. This allows the pressure to be maintained at a stable setpoint despite variations in aerosol consumption by the tool, ensuring both consistent aerosol quality and uniform cooling.
3Reliability
If a separate transport gas supply line is used to decouple aerosol generation from transport gas flow, then differential pressure can be regulated, but the means of transport required for generating aerosol can only be fed to the aerosol container limiting aerosol removal
Solution Approach 1:
The transport gas supply is segmented into two independent paths: one through the injector unit for aerosol generation, and another direct supply to the aerosol container for pressure control. This segmentation allows independent optimization of aerosol generation and pressure management, enhancing both control precision and system adaptability.
Solution Approach 2:
The separate transport gas supply line serves multiple functions: it provides transport gas for aerosol generation through the injector, and independently controls the aerosol container pressure. This multi-functionality allows the system to maintain differential pressure control while increasing adaptability for various aerosol discharge scenarios.
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 quick compensation for pressure changes in the aerosol container, maintaining consistent aerosol quality and preventing pressure fluctuations, ensuring effective and consistent cooling of tools regardless of aerosol volume or tool changes.
Implementation Method 1
The aerosol is usually generated by the injector unit according to the Venturi nozzle principle. The transport gas is thus blown through a Venturi nozzle into the aerosol container, with the liquid being entrained by the transport gas stream in such a way that it is finely atomized within the transport gas.
Implementation Method 2
A differential pressure between the pressure of the transport gas and the pressure of the aerosol in the aerosol container (aerosol pressure) is therefore necessary for aerosol generation by means of the injector unit, the pressure of the transport gas obviously being greater than the aerosol pressure.
Data Source
AI summary
A device for generating aerosols 1 is proposed, comprising: - an injector unit 3 for generating an aerosol 2 from a liquid 5 and a transport gas, wherein the aerosol 2 is introduced from the injector unit 3 into an aerosol container 6, - a liquid line 12 for supplying the liquid 5 to the injector unit 3, - a transport gas line 13 for supplying the transport gas to the injector unit 3, - an aerosol discharge line 15 for conveying the aerosol 2 from the aerosol container 6 to an aerosol consumer 20, and - a control unit 40 for controlling the supply of the transport gas to the injector unit 3. An aerosol control line 30 for discharged aerosol 2 from the aerosol container 6 and an aerosol pressure control valve 31 are provided, wherein the aerosol pressure control valve 31 can be controlled by the control unit 40 such that the discharge of aerosol 2 A preset aerosol target pressure can be set in the aerosol container 6.