专利汇可以提供Refrigerant cooled main steam condenser binary cycle专利检索,专利查询,专利分析的服务。并且This invention reduces the fuel consumption of the modern day power plant by lowering the main steam condenser operating pressure. The main steam condenser is a heat exchanger located in the power plant steam system for condensing steam. The main steam enters the main steam condenser, flowing around the tubes with the coolant flowing thru the tubes, condensing the steam. This invention replaces the present condenser once thru cooling water system with a refrigerant cooling system. The much lower normal temperature and greater high heat absorption rate of the refrigerant, lowers the main steam condenser operating pressure much below that of the present cooling water system. The lower condenser pressure increases steam flow, extracting more energy from the steam, increasing the plant-operating efficiency. This invention combines the conventional steam cycle with the conventional refrigeration cycle. The refrigerant compressor is driven by the main steam turbine which creates the binary cycle.,下面是Refrigerant cooled main steam condenser binary cycle专利的具体信息内容。
The invention claimed is:
The major intent of this invention is to improve the operational efficiency and the functional design of the modern day electrical power generating station. This invention replaces the main steam condenser once through cooling water system with a refrigerant cooling system. The invention is directed primarily toward new power plant construction. Maintenance, equipment replacement cost and future operating cost savings may make it beneficial to convert existing stations. The main steam condenser refrigerant cooling system will reduce fuel consumption with compatible power generation to that of the cooling water system. The intent of this invention is not to redesign the conventional steam cycle or the conventional refrigeration cycle but to combine them. The following drawings will aid in the clarification of this invention:
The combined cycles become known as a binary cycle. (
The refrigerant coolant is non-corrosive reducing plant maintenance costs. The heat from the present once thru cooling water system is transfer to the river or lake. The main steam condenser refrigerant cooling system allows for transfer of heat energy to building services, boiler feed and other utilities requiring heated water. The heat energy is not wasted. The main steam condenser refrigerant cooling system has greater temperature control than the present day once thru cooling water system. The refrigerant flow to the main steam condenser can be set at a constant, desired temperature. The conventional once thru cooling water temperature is constant and capacity is subject to pump design. The uniqueness of this invention is driving the refrigerant compressor with the main steam turbine. The main steam condenser and refrigerant evaporator share the same container and become one, and can now be known as the evaporator condenser. This combination also adds to the making of a binary cycle. The steam cycle and the refrigeration cycle remain unchanged with this invention. The installation of the combined conventional systems is as follows. (
The main steam exhaust trunk 13 is located at the base of the main steam turbines and directs the exhaust steam into the evaporator condenser 1. The steam enters the evaporator condenser 1 flowing around the tubes. The coolant flowing through the tubes changes the steam into condensate which collects in the condenser evaporator hotwell. 7 The condenser hotwell 7 is located in the lower portion of the evaporator condenser 1 and is the storage area for the condensate pump. The main condensate pump 8 takes suction from the hotwell 7 and delivers the condensate to the boiler feedwater heater 9 The feedwater heater 9 is the storage area for the feedwater pump 10. The main feedwater pump 10 delivers water to the main steam boiler 11 to produce main steam. The cycle is continuously repeated.
This invention replaces the main steam condenser cooling water system with a refrigerant cooling system. It should be noted that there is no intent of redesigning the steam cycle or refrigeration cycle. The combining of the steam condenser and the refrigerant evaporator along with the refrigerant compressor being driven by the main steam turbine creates the binary cycle. (
This invention has to do with the cooling system for the main steam condenser in the modern-day power plant. This invention replaces the main steam condenser existing once thru cooling water system with a refrigerant cooling system. In order for the steam cycle to function properly the main steam produced by the boiler must have a low-pressure area to discharge into. This area is the main steam condenser. The lower the pressure area the more efficient the system. When the energy of the steam is spent, after rotating the turbines, it discharges into the main steam condenser. The steam flows around the condenser tubes, as the coolant flows through the tubes the temperature difference causes the steam to condense. The lower the temperature of the coolant flowing thru the tubes the faster the steam is condensed. The condensing of the increased steam flow lowers the main steam condenser internal pressure. The refrigerant cooling system, improves the efficiency of the system, over the main steam condenser water-cooled system, considerably. The refrigerant has a normal temperature much lower than that of water and a much higher heat transfer rate than water. The main steam condenser refrigerant cooling system is controlled whereas the water-cooled condenser system fluctuates, because of seasonal temperature changes of the river or lake water. For example, the modern day power generating station produces less power in the summer months. The main steam condenser refrigerant cooling system will be much more fuel efficient than, the present once thru cooling water system.
This invention was inspired by the rising energy costs and public concerns. Utilities pass-on much of the increased energy costs to the public. To improve the efficiency of the power source, is to, lower consumer costs. The refrigerant cooling system replacement of the present once thru cooling system will reduce these costs. The lower utility costs and the elimination of the cooling towers and hot water returns to the river or lake, will reduce public economic and environmental concerns.
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