| 摘要 |
This invention improves and integrates a pressure control device (Pressure control device or PCD) into a new and efficient air removal system of a power plant condenser to dramatically improve condenser efficiency by reducing back pressure. The major improvements in the PCD of this invention are summarized below: First, the invention of a condenser steam-air mixture exhaust simulator for production of steam-air mixture at low pressure typical of operating conditions of power plant condensers makes it possible to study condensation mass and heat transfer data and to learn operating procedures for this Novel Pressure Control System (PCS) Technology for optimum reduction of air inventory in a condenser. With these data and procedures, the design and performance of a PCD can be greatly improved. Second, the development of an orifice plate to replace spray nozzles in a PCD greatly enhances the efficiency of the PCD. Third, the creative design for easy, safe and non-intrusive installation of a PCD by introducing a bypass loop avoids shut down of a power plant in case of failure of the PCD. This last feature helps ensure commercial viability of the Novel PCS Technology.
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