Introduction to the main fan unit of heavy oil catalytic cracking unit This unit adopts three units, namely hood, fan and motor, which are axial flow fans. The whole unit mainly provides the power source for the reaction regeneration system of the catalytic cracking unit. The smoke machine uses the flue gas as the main power, and further increases the compressor speed while the motor increases the compressor speed, thereby increasing the power wind pressure and ensuring the power of the two units. source. Before the transformation, its control system was mainly realized by solid-state logic electronic components. The structure was complex. After several years of use, the system appeared more and more problems, often causing unnecessary downtime and bringing huge economic losses to production. Therefore, the new system, which uses the upper computer as Intouch, replaces the previous control system to ensure smooth operation of the unit and ensure safe production and long-term operation. Intouch allows users to quickly develop custom screens for their applications using tools that are easy to understand and configure. The system provides a library of common graphical objects that allow users to easily create vivid screen displays. In addition, the easy-to-use configuration wizard also simplifies linking to real-time information. Users can also call inline script editing to extend the level of customization, which is primarily a form of configuration for dynamic linking of data in graphics. In the unit, including all liquid level, flow display and control valve operation of the unit, this must add dynamic links to the graphics in the picture to meet the configuration requirements. Intouch software makes an anti-surge control interface according to the process equipment, instrument operation and other conditions. The interface displays correspondingly for p, and the anti-surge control valve is also processed accordingly. It greatly improves the operability of the process personnel and prevents the surge of the compressor. Controls all data sources coming from the system. Including flow, pressure, temperature, liquid level and other display quantities and adjustment of speed, control of high temperature disc valves, vane control valves and other control. And from the safety point of view, the unit speed can not be too high, otherwise the phenomenon of flying will cause damage to personnel and equipment, so in the Intouch software to do three take two control speed operation interface, as long as the field main fan has two speed probe detection At the time of overspeed, a shutdown signal is issued to protect the unit. Customized tray Fruit tray transparent CANGZHOU XINFENG PLASTIC CO.,LTD , https://www.xinfengplastics.com