Compressor Mixing Valve for Condensate Prevention
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Solution Overview
Problem
Existing devices for preventing condensate formation in compressed air from oil-injected compressors are limited in their ability to continuously adjust air temperature and react to sudden load variations, leading to potential condensation issues and oil degradation.
Innovation Solution
A device equipped with a controlled mixing valve and a control system that adjusts the flow distribution through a cooler and bypass to maintain the compressed air temperature above its dew point, allowing for continuous adjustment and swift response to load changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If a pneumatically driven valve is used to switch the cooler on or off based on periodical measurements, then the compressed air temperature can be maintained above dew point, but the device cannot allow for continuous adjustment of the compressed air temperature
Solution Approach 1:
The patent replaces the static on/off valve control with a dynamic mixing valve that continuously adjusts the proportion of cooled air versus bypass air. This allows the system to adaptively control temperature in real-time rather than switching between fixed states, directly resolving the contradiction between temperature maintenance and continuous adjustment capability.
Solution Approach 2:
The invention changes the control parameter from binary (valve on/off) to continuous (mixing ratio). By varying the mixing ratio of cooled air and bypass air, the system achieves continuous temperature adjustment while maintaining the temperature above dew point, eliminating the limitation of discrete control states.
2Reliability
If a pneumatically driven valve with periodical measurements is used, then the cooler can be switched on or off, but the device cannot swiftly react to sudden load variations in the compressor element
Solution Approach 1:
The patent implements continuous feedback control by constantly monitoring compressed air temperature and pressure, then immediately adjusting the mixing valve position accordingly. This real-time feedback loop enables swift response to sudden load variations, preventing temperature and dew point peaks that would occur with periodical measurement and binary switching.
Solution Approach 2:
The invention maintains continuous control action through the always-open mixing valve system that continuously adjusts the air mixture ratio. This eliminates the dead time inherent in periodical measurements and on/off switching, ensuring uninterrupted adaptive response to changing compressor load conditions.
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 effectively maintains the air temperature above the dew point, preventing condensation and ensuring optimal oil temperature, even under varying load conditions, thus extending the lifespan of compressor components and maintaining oil quality.
Implementation Method 1
a cooler is provided in the above-mentioned injection pipe which can be bridged by means of a bypass
Implementation Method 2
provided with a control device and measuring means connected to it so as to control said mixing valve and to adjust the compressed air temperature
Implementation Method 3
by compressing air, moisture which is present in this air, can condense as the pressure increases
Implementation Method 4
moisture which is present in this air, can condense as the pressure increases
Data Source
AI summary
Device to prevent the formation of condensate in compressed gas coming from an oil-injected compressor element which is connected to an oil separator which is connected to the compressor element by an injection pipe, and wherein a cooler is provided in the injection pipe which can be bridged by means of a bypass. A controlled mixing valve is connected to the injection pipe and to the bypass, and a control device controls the mixing valve to adjust the compressed air temperature by adjusting the flow distribution through the mixing valve.