Steam distributor and moisture separator reheater

Abstract

The invention relates to a steam distributor which comprises a steam channel entering from the bottom and diffused towards the periphery. A lower guide plate and an upper guide plate positioned above the lower guide plate enclose the steam channel, a dewatering channel connected with the lower guide plate and the upper guide plate is arranged in the steam channel, and the upper space of the upper guide plate is communicated with the peripheral space of the lower guide plate through the dewatering channel. Wet steam scouring prevention and guide functions are achieved, the dewatering channel collects condensed water formed by wet steam on the surface of the upper guide plate and drains the condensed water to the space between a lining plate on the periphery of the lower guide plate and a shell, so that the steam distributor can be directly fixed onto the shell, and great convenience is brought for mounting the steam distributor. The invention further relates to a moisture separator reheater. The steam distributor can be applied to steam distribution of the moisture separator reheater.

Description

technical field [0001] The invention relates to the field of nuclear power equipment, in particular to a steam distributor and a steam-water separation reheater. Background technique [0002] The uniformity of steam distribution inside the shell side is an important performance index of the steam-water separator reheater (MSR), which needs to be assisted by setting up corresponding equipment and facilities in the MSR inlet area. At present, in order to prevent the gas from directly impacting the heat exchange tubes in the MSR, the MSR usually arranges an anti-shock plate or a deflector at the inlet section. [0003] The shape of the anti-shock plate and the deflector is generally a flat plate or a slightly tapered plate, which is a non-streamlined surface, and the angle of gas deflection is large, which will generate greater resistance; in addition, ordinary anti-shock plates and deflectors do not have a hydrophobic structure , so when the wet steam flows through, the water...

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Problems solved by technology

[0003] The shape of the anti-shock plate and the deflector is generally a flat plate or a slightly tapered plate, which is a non-streamlined surface, and the angle of gas deflection is large, which will generate greater resistance; in addition, ordinary anti-shock plates and deflectors do not have a hydrophobic structure , so when the wet steam flows through, the water attached to the surface of the plate will not be able to drain away; finally, the anti-shock plate and the deflector are generally directly connected with the shell, and a part of the shell of the MSR needs to be reserved as a hydrophobic space, so the anti-shock The punching plate and deflector plate cannot be directly connected with the shell, which is a difficult problem for fixing the two plates

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