Energy-saving efficiency of the decarburized rich liquid energy recovery turbine
Thread Content
Our factory uses carbon-propane decarburization; the system pressure is 27 kilograms, and the circulation volume of the decarburization solution is 500 cubic meters. Last year, a W480 turbine produced by Shanghai No.1 Water Pump Factory was installed for use. Since it was put into operation in October 2007, it has resulted in energy savings – the current consumption of the 6000V motor has decreased by 10 amps. However, this savings figure differs significantly from those claimed by the manufacturer. Please help analyze the reasons for this phenomenon, and share your own experiences!
I think there are several reasons: First, the manufacturer’s descriptions contain elements of exaggeration. II. Whether the rich liquid passes through the turbine in its entirety; if it does not pass through completely, then according to the law of conservation of energy, the efficiency will definitely decrease in proportion to the amount that does not pass through. III. Depending on the flash pressure and position, the difference in kinetic energy between the liquid exiting the tower and the rest of the liquid varies, which in turn affects the level of energy savings achieved.
Currently, there are two methods for energy recovery from decarbonized rich liquid: the first is the turbine system used by some manufacturers, which has a very low recovery efficiency and also exhibits unstable operation； The second type is the turbine booster pump produced by the American company PEI; the turbine is directly connected to the impeller, without the use of a coupling, and its recovery efficiency is around 50%. It is used in many industries abroad such as petrochemicals, fertilizers, and seawater desalination. In China, it is currently used only in the seawater desalination industry, while there are no prototypes available for use in the chemical industry yet. It is understood that PEI Company has an agent in China, located in Shijiazhuang, named Haikuo Jieneng Company