Analysis of the operation of mechanical equipment during the operation of hydro engineering facilities of HPP

Abstract

According to its technological purpose and location, the mechanical equipment of the hydrotechnical structures of the hydroelectric power station is divided into three groups: the equipment of the upstream shield room, the turbine room and the downstream shield room. The article discusses in detail the main features and problems that arise during the operation of the mechanical equipment of the upstream shield compartment. This mechanical equipment serves to protect the units from overclocking; overlapping of inlet openings of spillways in case of accidents with main gates; for fencing from the headwater side when access to the underwater parts of the structure and equipment is required. It is noted that a feature of the operation of mechanical equipment is a large number of metal structures that are under water or are wetted with water and thereby undergo biochemical corrosion, which causes intensive destruction of the metal. The ways of preventing the development of corrosion and methods that ensure the durability and effectiveness of protection against biological fouling, metal structures at hydroelectric power plants are presented.