Skimming device for purifying surface of reactor core pool

Abstract

The invention belongs to the technical field of purification of water in a nuclear reactor core pool, and in particular relates to a skimming device for purifying the surface of the reactor core pool. The overall shape of the skimming device is triangular, and the skimming device is composed of inner buoys and outer buoys, wherein the relative position slippage between the inner buoys and the outer buoys is realized by mechanical support rods. The skimming device concretely comprises three inner buoys, three outer buoys and corresponding support structures. Under the buoyancy action of the inner buoys and the outer buoys, the skimming device floats on the surface of the pool, an upper barrel body sinks into water, a suction pump pumps and filters the water through a suction bent pipe and discharges the water into the pool; the upper barrel body is of a center perforated cylindrical structure mounted at the center position of the skimming device, and a lower barrel body is of a center perforated cylindrical structure mounted on the lower part of the upper barrel body. A lower flange and a lower connection pipe vertically move along a waist hole guide slot, and when the skimming device is lifted out from the surface of the water by the upper flange, the water in the barrel body is discharged through waist holes; and the lower part of the lower connection pipe is connected with the suction bent pipe by a quick joint.

Description

technical field [0001] The invention belongs to the technical field of water quality purification of nuclear reactor core pools, and in particular relates to a slag skimming device for purifying the surface of the core pool. Background technique [0002] The scum skimming device on the surface of the core pool is mainly used to purify the water quality of the core pool during core refueling and improve the cleanliness and transparency of the core pool, which is one of the guarantee conditions for the smooth operation of core unloading and loading. During refueling and overhaul of nuclear power plants, a floating skimmer should be installed above the core pool before unloading / loading the core. The overall stability on the water surface is relatively large in size and weight. It needs to be installed with the ring crane of the nuclear island. Each overhaul takes about 3 hours for the ring crane. Because the equipment is to be installed above the pool, there is a risk of fore...

AI Technical Summary

Problems solved by technology

Because the equipment is to be installed above the pool, there is a risk of foreign objects and personnel falling into the pool and contamination by personnel

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