Ship exhaust gas denitration function simulation system

Abstract

The invention discloses a ship exhaust gas denitration function simulation system. The system comprises a touch screen, a PLC, a relay, a button switch and an indication lamp. The hardware signals ofship exhaust gas denitration equipment are simulated by using the switching value input and output module of the PLC, the relay, the 4-20mA input and output module of the PLC, and the software programming of the PLC is used to realize a logic relation among the various hardware signals. For the different ship exhaust gas denitration equipment, corresponding simulation control output signals are designed to realize the working condition simulation of the whole process of ship exhaust gas denitration. Through modifying simulation parameters, a ship exhaust gas denitration control system is debugged, whether the response of the ship exhaust gas denitration control system is correct is confirmed and the on-site debugging time of the ship exhaust gas denitration control system is reduced. The system can be used for the training and learning of a beginner, disadvantages that traditional training work is difficult and is time-consuming and labor-consuming and so on are overcome, and the training cost of the ship exhaust gas denitration control system is reduced.

Description

technical field [0001] The invention relates to a ship exhaust gas denitrification function simulation system, which belongs to the field of ships. Background technique [0002] The existing ship exhaust gas treatment system mostly adopts selective catalytic reduction (SCR) method to remove NOx in ship exhaust gas. This method requires the installation of a reactor with a catalyst, which is relatively large in size, and a certain amount of urea solution needs to be injected. Or ammonia water, there are problems such as high investment and operating costs, excessive leakage of ammonia into the atmosphere causing pollution, narrow reaction temperature window, and catalyst poisoning. [0003] At present, the ship exhaust gas denitrification system adopts automatic control. The whole process of ship exhaust gas denitrification can be monitored through the upper computer. The operator only needs to operate on the upper computer to control the whole system and realize the automati...

AI Technical Summary

Problems solved by technology

[0004] The commissioning of the traditional ship exhaust gas denitrification system often needs to start the main engine of the ship, which is time-consuming, laborious and fuel-intensive. If it is commissioned on a real ship, it must also be debugged during the ship's navigation. Risky

In addition, since the commissioning of the ship exhaust gas denitrification system must run the main engine of the ship, it also causes great inconvenience to the operation training. Therefore, it is very important to design and develop a ship exhaust gas denitrification function simulation system

Images