Patent ID: 9188393
Filing Date: 2015-11-17
Classification: F01K,F28B,F28F

Abstract:
1. A multistage pressure condenser comprising: a low-pressure chamber for operating at low pressure; a high-pressure chamber for operating at high pressure; a pressure bulkhead that has a plurality of holes and that divides the low-pressure chamber in a vertical direction into an upper section and a lower section; a cooling-tube bank that is provided in the upper section of the low-pressure chamber and is configured to perform heat exchange with low-pressure steam guided to the low-pressure chamber by introducing coolant therein so as to condense the low-pressure steam to low-pressure steam condensate; a steam duct configured to convey high pressure steam from the high-pressure chamber to the low-pressure chamber to reheat the low-pressure chamber; and a plurality of corrugated plate members that are arranged parallel to each other below a part of the pressure bulkhead and that extend in a falling direction of the low-pressure steam condensate falling from the holes in the pressure bulkhead, wherein the lower section of the low-pressure chamber is a reheat chamber that is configured to store the low-pressure steam condensate falling from the holes in the pressure bulkhead, wherein the corrugated plate members each have a corrugated shape including at least one protrusion and at least one recess disposed alternately in the vertical direction, the at least one protrusion and at least one recess protruding and being recessed respectively in a horizontal direction perpendicular to the vertical direction, wherein adjacent ones of the corrugated plate members are arranged with a continuous predetermined gap therebetween, and a distance between the adjacent corrugated plate members is the same, wherein said part of the pressure bulkhead is depressed downward to form a condensate pool, and the holes are provided only in said part of the pressure bulkhead, and wherein the adjacent corrugated plate members are arranged away from each other at a distance to allow the low-pressure steam condensate falling from the holes to contact both of the adjacent corrugated plate members to form a liquid film therebetween.