Vapour and water separator

Abstract

A steam-water separator for the steam generator in nuclear power plant and the boiler in steam power plant is composed of a separating cylinder with central column and dual oblique blades installed to said central column, a sleeve barrel outside the separating cylinder with a hydrophibic flow limiting ring at its bottom end, a steam outlet barrel above said separating cylinder, and a diverter cover above said steam outlet barrel and with radiating blades. Its advantage is high critical flow seed of steam and separating efficiency.

Description

technical field [0001] The invention relates to equipment for dehumidifying gas or steam, in particular to a steam-water separator in a steam generator of a nuclear power plant or a drum boiler of a thermal power plant. Background technique [0002] The steam-water separator is located under the dryer and the gravity separation space in the steam generator of the nuclear power plant or the steam drum boiler of the thermal power station. Dry saturated steam ensures the safe and economical operation of the steam turbine. The structure of the existing steam generator steam-water separator in a nuclear power plant is shown in Figure 2. This steam-water separator includes a separation cylinder 10, an outer cylinder 9 is arranged outside the separation cylinder 10, and a tangential drainage port 8 is arranged on the upper part of the outer cylinder 9. , the outer cylinder 9 is provided with an annular hydrophobic passage 13, the lower part of the annular hydrophobic passage 13 is...

AI Technical Summary

Problems solved by technology

The critical flow rate of this steam-water separator is low, and the steam-water separation effect needs to be further improved. Moreover, due to the use of the secondary separator, it is not possible to insert a probe to perform video inspection on the elbow area of ​​the inverted U-shaped heat transfer tube bundle in the lower half of the steam generator.

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