Ship exhaust gas denitrification function simulation system

Abstract

The invention discloses a ship exhaust gas denitrification function simulation system, which includes a touch screen, PLC, relays, button switches and indicator lights, and uses a PLC switch value input and output module, a relay, and a PLC 4‑20mA input and output module to simulate ship exhaust gas denitrification For the hardware signal of the equipment, use PLC software programming to realize the logical relationship between various hardware signals; for different ship exhaust gas denitrification equipment, design corresponding simulation control output signals, and realize the working condition simulation of the whole process of ship exhaust gas denitrification , by modifying the simulation parameters, debugging the ship's exhaust gas denitrification control system, confirming whether the response of the ship's exhaust gas denitrification control system is correct, and reducing the on-site debugging time of the ship's exhaust gas denitrification control system. It can be used for the training and learning of beginners, which solves the shortcomings of traditional training work such as difficulty, time-consuming and laborious, and reduces the training cost of the ship's exhaust gas denitrification control system.

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

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