Six-operating-condition bidirectional tide power generation water turbine

The invention belongs to the technical field of fluid machinery and engineering devices, and in particular relates to a six-operating-condition bidirectional tide bulb through-flow water turbine by adopting the brand new guide vane molded line and revolving wheel blade thickness regularity of distribution. The turbine comprises a water inlet pipe, a bulb head, a tubular seat, a guide vane, a revolving wheel and an exhaust tube; the shape of the guide vane is designed, and a brand new molded line is adopted, thus the flow is more smooth, and the resistance loss in a flow channel is less; the revolving wheel blade is designed, an S-shaped revolving wheel blade is adopted, a new thickness changing discipline is adopted from the inlet to the outlet, and higher efficiency of the operation of the forward and backward bidirectional water turbine is ensured; and compared with the general tide machine set, the turbine provided by the invention has the advantages that the efficiency of the forward and backward bidirectional water turbine is improved, the vibration and pressure pulsation are reduced, the revolving wheel machinery strength is increased, and the dynamic stress of the revolvingwheel blade is reduced, thus the occurrence of cracking probability of the revolving wheel blade is greatly reduced, and the operation stability of the water turbine is improved.