Automatic Control Of Driving Safety

Sulfur acid making device in the driving process often because the process parameters are not up to standard, the valve position setting is unreasonable or the inspection is not in place, often sulfur acid making device in the driving process production, safety, environmental protection accidents such as “ Serious accidents such as sublimation sulfur, water hammer steam explosion pipe, smoke, dilute acid corrosion cause serious economic losses and negative social impact to enterprises. With the improvement of sulfuric acid plant automation and long cycle operation, the operation ability and emergency response ability of production operators for the production of the device are reduced, and the operation data information threshold of the device is seriously decreased, thus, the safety control of the sulfuric acid device is seriously decreased during the driving process. According to statistics, in 2024, there are many sets of highly automated sulfur acid making devices in the driving process, process parameters are not up to standard, and the valve position setting is unreasonable, resulting in driving safety accidents. Under the background of the popularization of sulfur acid plant automation and the reduction of operators, designing a set of sulfur acid plant driving safety automatic control system is the most effective tool to avoid accidents during driving. Lilly Technology has been committed to the digital research and development of sulfuric acid plant to solve the problems faced by the industry. Due to the needs of the industry, we have developed DSC-100 sulfuric acid device driving safety automatic control system, which is designed according to the conditions that need to be met by the characteristics of each section of the sulfuric acid device driving. The functions of sequential operation in the process of starting preparation, automatic confirmation of key process parameters before starting, automatic confirmation of the safety position of each valve position before starting, confirmation of the conditions that need to be met before starting, safety control during the driving process, etc.

Control Logic

Sulfur acid making device driving is a complex and long process, in this process involves the order of driving preparation, the adjustment of process parameters, the setting of the control valve on the device, and the confirmation of all conditions before starting the fan to spray sulfur driving, because the driving process is the process of the device from static to dynamic process process parameters will change dramatically. Accidents can occur when the device is not properly prepared, so it is necessary to control the driving process safely. Based on the change of driving process, it is very important to design a set of perfect and reasonable control logic.

Auto Safety Control System

The device is often the busiest in the driving process and after maintenance or emergency treatment, the operator often needs to carry out a number of manual confirmation of the current state of the device. Due to the urgency of time and high-intensity operation, the operator will be physically and mentally tired during the driving process and it is difficult to concentrate mentally. American ASM (Abnormal State Management Association) research, chemical equipment caused by abnormal state of 36% is caused by equipment failure, 22% is caused by process, 42% is caused by operator error. Therefore, a set of human-friendly driving safety automatic control system is particularly important, can guide the operator to automatically complete the automatic inspection of driving safety, failure can assist the operator to complete the troubleshooting, make the key conditions of the device 100% meet the requirements before driving, effectively prevent the occurrence of driving accidents caused by personnel errors. Figure 2 shows the control screen of DSC-100 sulfuric acid plant driving safety automatic control system on 800,000 tons sulfur acid making plant.

(automatic control of driving process for driving safety) 

(Driving safety automatic control complete state)