The utility model discloses a
water turbine set top cover waste water collecting device which comprises a negative pressure
assembly and at least one set of suction
assembly which are connected with each other, the negative pressure
assembly is connected with the suction assembly through a liquid pumping pipeline, a liquid pumping control assembly is arranged on the liquid pumping pipeline, and a first
liquid level sensor is arranged on the suction assembly. The negative pressure assembly is further connected with a liquid discharging assembly. Only several small-size suction assemblies are arranged in an on-site liquid accumulation area, in a limited
water turbine set top cover area, the waste
water collection function can be achieved, daily passing and maintenance of a
water turbine set are not affected, and the problems that the area of a set top cover is large, multiple water splashing points exist, the water splashing positions are random, the accumulated water thickness is small, the available space is narrow, and the occupied space is large are solved. Therefore, the
wastewater collection difficulty is high. In addition, the problem that the
failure rate of mechanical parts is increased due to the fact that the site is humid and dirty is solved.