Multistage Compressor Dryer with Intercooler and Regeneration Heating
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Solution Overview
Problem
Existing compressor installations face challenges in ensuring adequate regeneration of the drying agent due to insufficient temperature of the regeneration gas, leading to moisture buildup and suboptimal drying cycles.
Innovation Solution
The solution involves a compressor installation with a heat exchanger that heats the compressed gas before it enters the last compressor element, allowing for efficient cooling and condensate removal without reducing the temperature of the regeneration gas below optimal levels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If the cooling capacity of the intercooler is reduced to increase regeneration gas temperature, then the temperature of the regeneration gas is improved, but less moisture is removed from the compressed gas
Solution Approach 1:
The cooling process is divided into two stages: first cooling in the intercooler to remove bulk moisture, then selective reheating in the heat exchanger to optimize regeneration gas temperature. This segmentation allows independent optimization of moisture removal and temperature control.
Solution Approach 2:
The temperature of the compressed gas is dynamically adjusted by controlling the heat exchanger operation. The system changes the temperature parameter of the gas stream to match the specific requirements of the drying agent regeneration process, optimizing both moisture removal and regeneration effectiveness.
2Temperature
If an electric heater is provided in the regeneration line to increase regeneration gas temperature, then the temperature of the regeneration gas is improved, but additional energy consumption occurs
Solution Approach 1:
The system converts the excess heat from the compressed gas (which would otherwise be wasted) into a useful resource for regenerating the drying agent. The heat exchanger captures this otherwise lost thermal energy and applies it to the regeneration process, eliminating the need for additional electric heating.
Solution Approach 2:
The compressed gas itself provides the heat needed for regeneration through the heat exchanger. The system uses its own thermal energy to perform the regeneration function, making the process self-sufficient and eliminating external energy inputs.
3Temperature
If the cooling capacity of the intercooler is reduced to increase regeneration gas temperature, then the temperature of the regeneration gas is improved, but moisture builds up in the dryer
Solution Approach 1:
The thermal processing is segmented into distinct cooling and heating phases. The intercooler handles moisture removal through cooling, while the heat exchanger subsequently raises the temperature for regeneration. This ensures both moisture removal and temperature optimization are achieved without compromise.
Solution Approach 2:
Moisture removal is performed as a preliminary action in the intercooler before the gas enters the drying section. This ensures that when the gas is subsequently heated for regeneration, the moisture has already been removed, preventing buildup in the dryer while maintaining effective regeneration.
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 approach ensures that the regeneration gas has a sufficiently high temperature to effectively regenerate the drying agent, while maintaining low moisture content, thereby improving the efficiency and reliability of the drying process.
Implementation Method 1
the compressor installation is further provided with a heat exchanger with a primary section located in said pressure line downstream of said intercooler for heating the compressed gas
Implementation Method 2
an intercooler is provided between the compressor elements
Data Source
AI summary
Compressor installation with at least two compressor elements in which the last compressor element is connected via a pressure line to the penultimate compressor element. An outlet line is connected to the outlet of the last compressor element and an intercooler is provided in the pressure line. The compressor installation includes a dryer for drying the compressed gas, the dryer provided with a drying section which is connected to the outlet line and with a regeneration section. A regeneration line is connected to the inlet of the regeneration section, which departs from a branch point of the outlet line, and the compressor installation is provided with a heat exchanger located in the pressure line downstream of the intercooler, in which the compressor installation is provided with means for controlling the heat exchanger, and the compressor installation is provided with a control unit for controlling the means.