Research On Temperature And Humidity Differential Control Technology Of Electricity With Positive Voltage

Electrical room is an important auxiliary production equipment for offshore platforms.With the increasing maturity of offshore oil extraction technology,offshore platforms have become more and more widely used,and safety issues in electrical rooms have received more and more attention.On the one hand,the electrical equipment in the electrical room has a large amount of heat dissipation.If the heat is not dissipated in time,the excessive temperature will affect the life of the electrical equipment.On the other hand,the offshore platform is fixed or moored at sea all year round.After the air enters the electrical room,it will cause serious corrosion to the indoor electrical equipment and affect the life of the equipment.In addition,the offshore platform will generate flammable and explosive mixed gas.Once it enters the electrical room,it will easily cause an explosion when it reaches a certain concentration.Therefore,in order to create a safe electrical room environment,it is necessary to control the temperature and humidity of the electrical room,while forming a positive pressure state for the electrical room to prevent outdoor flammable and explosive gases from entering the electrical room.Based on the above background,this article studies the temperature,humidity,and pressure difference control technology for electrical rooms with positive voltage.The main research contents are as follows:First,according to the actual situation of the electrical room,a temperature and humidity differential pressure control scheme combining a fresh air system and an air conditioning system is proposed.The HVAC(Heating,Ventilation and Air Conditioning)is determined according to the volume of the internal space of the electrical room,the air tightness of the maintenance structure,and the positive pressure that needs to be formed.The fresh air volume of the system is determined according to the heat dissipation power of the electrical room,the thermal conductivity of the envelope structure,etc.,and then the key components of the HVAC system are selected.Then analyze the temperature and humidity differential pressure control method,according to the coupling relationship between temperature and humidity,establish a mathematical model of the electrical temperature and humidity control system,according to the composition of the pressure difference control system,establish a mathematical model of each part of the electrical pressure difference system.Finally,the temperature and humidity decoupling technology is used to decouple the temperature and humidity control system,and MATLAB software is used to perform PID simulation analysis on the decoupled temperature and humidity control system,and compared with the PID simulation results of the coupled system;The difference control system is simulated and compared under fuzzy PID and conventional PID control.It can be known from the simulation results that the decoupled temperature and humidity control system responds faster and the pressure difference control system under fuzzy PID control is more stable.