The application of E7-200 Smart in adsorption regeneration dryer

      In the field of modern industrial production, the quality of compressed air plays a crucial role in improving product quality and enhancing production efficiency. Especially in industries with extremely strict requirements for air humidity control, such as pharmaceuticals, electronic manufacturing, and food processing, ensuring the use of high-quality dry air is particularly important. The adsorption regeneration dryer, as an efficient and reliable air drying equipment, has been widely and deeply applied in these industries.

Project Overview

     The application of Huichen E7-200 Smart PLC in adsorption regeneration dryer mainly involves the automation control of the drying process. Through real-time monitoring and precise control of PLC, precise adjustment of key parameters such as temperature, pressure, and humidity inside the dryer is achieved, ensuring that the dryer can continuously and stably output dry air that meets the requirements. At the same time, PLC is also responsible for coordinating the working status of various components to ensure the smooth progress of the entire drying process.


Main functional characteristics

   1. Temperature control: The Huichen E7-200 Smart PLC can monitor the internal temperature of the dryer in real time and automatically adjust it according to the set temperature range. By controlling the operation status of heating or cooling equipment, it is ensured that the internal temperature of the dryer is always maintained within the optimal working range, thereby improving drying efficiency and quality.
   2. Pressure regulation: PLC can monitor the pressure changes at the inlet and outlet of the dryer in real time, and adjust the opening of the pressure valve as needed to maintain stable air flow and pressure. This helps to reduce energy loss, improve drying efficiency, and protect equipment from damage caused by excessive pressure.
   3. Humidity control: Humidity is one of the most important control parameters in adsorption regeneration dryers. The Huichen E7-200 Smart PLC monitors the humidity value at the outlet of the dryer in real time and automatically adjusts it according to the set humidity range. When the humidity exceeds the set value, the PLC will start the regeneration process, discharge the moisture in the adsorbent through heating and other methods, and restore its adsorption capacity. This can ensure that the dryer can always output dry air that meets the requirements.
   4. Fault diagnosis and alarm: PLC has powerful fault diagnosis and alarm functions. Once an abnormal situation occurs in the dryer, such as high temperature, abnormal pressure, etc., the PLC will immediately issue an alarm signal and display fault information through the touch screen or upper computer software. This helps to identify and solve problems in a timely manner, reducing production interruptions and losses.
   5. Data recording and analysis: The Huichen E7-200 Smart PLC can record real-time operating data of the dryer, such as changes in temperature, pressure, humidity and other parameters. Users can view historical data and perform data analysis and report generation through the upper computer software. This helps users understand the operating status and performance of the dryer, providing strong support for optimizing production processes and improving product quality.
 

PLC configuration table
Number	name	model	notes
1	CPU SR30	E7 288 1SR30 0AA1	18DI/12DO
2	DB AQ01	E7 288 5AQ01 0AA1	1AO
3	EM DR08	E7 288 2DR08 0AA1	8DO
4	EM AE08	E7 288 3AE08 0AA1	8AI