Moisture separator

A moisture separator which separates moisture from moist steam, comprising:

• a plurality of corrugated plates each having a zigzag cross-sectional shape with a projection and a depression that are arranged alternately, said plurality of corrugated plates being arranged at an interval to form a steam passage for the moist steam;
• and
• a plurality of collecting plates which are fixed to the corrugated plates, each of said collecting plates extending upstream in a direction of a steam flow within the steam passage so as to cover the projection of each of the corrugated plates,
• wherein a pocket section with an opening which opens to an upstream side in the direction of the steam flow is formed between the collecting plates and each of the corrugated plates,
• wherein a drain duct section is provided on a downstream side of the pocket section in the direction of the steam flow and is in communication with the pocket section, said drain duct section extending vertically,
• wherein the moisture separator further comprises a drain plate which is provided between the collecting plates and each of the corrugated plates to direct the moisture entrained in the pocket section to the drain duct section,
• wherein the drain plate is arranged horizontally or is downwardly-inclined toward a downstream side in the direction of the steam flow.

A moisture separator which separates moisture from moist steam, comprising:

• a plurality of corrugated plates each having a zigzag cross-sectional shape with a projection and a depression that are arranged alternately, said plurality of corrugated plates being arranged at an interval to form a steam passage for the moist steam;
• and
• a plurality of collecting plates which are fixed to the corrugated plates, each of said collecting plates extending upstream in a direction of a steam flow within the steam passage so as to cover the projection of each of the corrugated plates,
• wherein a pocket section with an opening which opens to an upstream side in the direction of the steam flow is formed between the collecting plates and each of the corrugated plates,
• wherein a drain duct section is provided on a downstream side of the pocket section in the direction of the steam flow and is in communication with the pocket section, said drain duct section extending vertically,
• wherein the moisture separator further comprises a duct plate which is provided on an outer surface of the collecting plates and extends vertically to a height which is less than a height of each of the collecting plates, said duct plate having an arc-shaped cross-section which each end fixed downstream of a tip end of each of the collecting plates where the tip end marks a beginning of the opening of the pocket section,
• wherein the pocket section is formed between the collecting plates and each of the corrugated plates and the drain duct section is formed between the duct plate and each of the collecting plates, and
• wherein the drain duct section is in communication with the pocket section through a drain through-hole which is formed in each of the collecting plates.