Jetted Vacuum Drying
New Technique for Fast and Spot Free Drying
New Technique for Fast and Spot Free Drying
Critical Control Parameters
The three critical control parameters are:
Principle of Operation The three critical control parameters are:
- Quantity of Water – The volume of water to be removed dictates the heat and size/type of vacuum pump required.
- Heat – The hotter the vacuum chamber the more efficient the process. Steam or electric heat sources can be used depending on application specifics.
- Vacuum Torr – The vacuum pump is sized based on throughput, quantity of water and available heat.
By optimizing these critical parameters the user has a great deal of process lattitude in reaching the desired performance and throughput.
HyperFlo’s patented Jetted Vacuum Dry (JVD) process is unique in its ability to rapidly vaporize, displace and absorb water from surfaces. JVD operates on the same principle as Vacuum Cycle Nucleation (VCN, click here to learn more). JVD involves three key steps:
- Vaporization – Vapor bubbles are formed on wet surfaces as the vacuum level is lowered just below the vapor pressure of the liquid.
- Displacement – As the vacuum level is raised the vapor from the imploding vapor bubbles is flashed into the heated jet stream.
- Absorption – This is the final phase where the heated jet stream expands as it absorbs the water being displaced and swept from the process chamber.