DESIGN OF HEAT ENERGY SYSTEM IN METALLURGICAL PLANT
Introduction
Heat energy system is widely used in all kinds of industries, especially in Metallurgical plant. Heat energy system consists of four components: boiler, heat exchanger, pipeline and accessory. It must not only meet the requirement of energy conservation and environment protection, but also satisfy the demands of products quality and production process. In this paper, some issues related to the design of heat energy system in Metallurgical plant will be discussed.
System components and their design
Boiler
The design of a boiler includes its type, capacity, temperature and steaming pressure. Boiler is usually divided into two categories: fire-tube and water-tube. For Metallurgical plant, water-tube boiler is commonly used as it has larger capacity and higher steam pressure. Along with the increase of the production scale, the size of the heating surface and the power of the boiler should also be taken into consideration.
Heat Exchanger
The selection of the heat exchanger is based on the type and quantity of energy to be transferred. The flow of the fluid must be considered in order to obtain the required performance. At the same time, due to the particularity of Metallurgical plant, the corrosion resistance and dust removal of the heat exchanger must be considered.
Pipeline
The dimension of the pipeline should be according to the pressure, temperature and transfer capacity of the heat energy system. In addition, special measures must be taken for long distance pipeline, since pressure difference and temperature difference can cause problems.
Accessory
The accessories of the system include valves, regulators and control instruments. The selection of the accessories must be able to meet the control requirements of the system. In this case, the accuracy, stability, durability and so on must be taken into account.
Conclusion
The design of heat energy system in Metallurgical plant plays a vital role in the production process. The components of heat energy system, including the boiler, heat exchanger, pipeline and accessories, all must be carefully designed to ensure the system performs properly and meets the demands of energy conservation and environment protection.
