Vacuum Cleaning Equipment Condensing Chamber Rapid Drying
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Solution Overview
Problem
Conventional vacuum cleaning methods using mechanical rotary vacuum pumps are inefficient in drying processes, as they take a long time to exhaust and dry gases expanded by evaporation, and further pressure reduction increases exhaust time, necessitating a method to shorten the drying process for enhanced cleaning quality and productivity.
Innovation Solution
A vacuum cleaning apparatus comprising a cleaning chamber under reduced pressure, a condensing chamber maintained at a lower temperature than the cleaning chamber, and an opening/closing valve connecting the two, allowing communication between them to facilitate rapid drying of the workpiece after cleaning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional vacuum pump is used to exhaust and dry the gasified solvent, then the drying process can be performed, but the exhaust time becomes excessively long due to the large volume expansion (more than 100 times)
Solution Approach 1:
The invention changes the physical parameters of the solvent vapor by controlling temperature and pressure. During the drying process, the system maintains vacuum conditions while controlling the solvent vapor temperature and pressure parameters to prevent excessive expansion, thereby reducing exhaust time while maintaining drying effectiveness
Solution Approach 2:
The invention utilizes phase transitions of the petroleum-based solvent between liquid and vapor states. By controlling the phase transition conditions through temperature and pressure regulation in the cleaning chamber, the system achieves efficient drying without excessive gas expansion, resolving the contradiction between drying capability and exhaust time
2Manufacturing precision
If pressure is further reduced to enhance drying characteristic, then drying efficiency improves, but the gas expands additionally and exhaust time increases
Solution Approach 1:
The invention optimizes the balance between pressure reduction and drying quality by precisely controlling pressure parameters. Instead of continuously reducing pressure, the system maintains an optimal pressure range that achieves sufficient drying while minimizing gas expansion and exhaust time
Solution Approach 2:
The invention replaces the conventional mechanical approach of continuous pressure reduction with a controlled pressure maintenance system. By using temperature control and selective vapor condensation mechanisms, the system achieves drying quality enhancement without the penalty of increased exhaust time associated with further pressure reduction
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 solution significantly reduces the time required for drying, improving overall treatment capacity and productivity by efficiently evaporating solvents from the workpiece, while also reducing energy consumption and apparatus costs.
Implementation Method 1
a condensing chamber (21) and configured to be placed in a depressurized state by the vacuum pump, the condensing chamber configured to be kept in the depressurized state; a temperature maintaining member (22) configured to maintain the condensing chamber at a lower temperature than the cleaning chamber
Implementation Method 2
a vacuum pump; a cleaning chamber (2) configured to be placed under reduced-pressure atmosphere; a condensing chamber (21) configured to be placed in a depressurized state by the vacuum pump
Implementation Method 3
a vapor generating member configured to generate vapor of a petroleum-based solvent; a cleaning chamber (2) configured to be placed under reduced-pressure atmosphere and allow a workpiece to be cleaned under reduced pressure by the vapor fed from the vapor generating member
Data Source
Figure 1
Figure 2
Figure 3
AI summary
Vacuum cleaning apparatus (1, 51) includes a vapor generating member (8, 8a, 53, 53a) for generating vapor of a petroleum-based solvent, a cleaning chamber (2) allowing a workpiece to be cleaned under reduced pressure by the vapor fed from the vapor generating member, a condensing chamber (21) that is connected to the cleaning chamber and is maintained in a depressurized state, a temperature maintaining member (22) that maintains the condensing chamber at a lower temperature than the cleaning chamber, and an opening/closing member (20) that provides or cuts off communication between the condensing chamber and the cleaning chamber.