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我国门座式起重机数量众多,但其能源利用率较低。我日照港股份有限公司第二港务分公司研发了势能回收再利用自循环节能技术,将门座式起重机起升机构下降时的势能进行回收,并利用超级电容作为存储单元,由此提高了能源转换效率。现介绍这种技术及应用情况。1.节能技术现状我公司10t、16t门座式起重机为上海港口机械厂90年代制造,其起升机构采用绕线式异步电动机,通过在转子上串连电阻进行调速,重载下降制动时重力产生的势能通过电动机转变为电能,
China’s large number of portal cranes, but its low energy efficiency. I Rizhao Port Co., Ltd. Second Port Branch developed a potential energy recovery and recycling of self-cycle energy-saving technology, the fall of the portal crane when the potential energy recovery, and the use of super-capacitor as a storage unit, thereby enhancing the energy conversion effectiveness. Now introduce this technology and application. 1. The status of energy-saving technology Our company 10t, 16t portal cranes for the Shanghai Port Machinery Factory manufacturing in the 90s, the lifting mechanism using wound induction motor, through the rotor resistance in series to speed, heavy-duty down brake When the potential energy generated by gravity into electricity through the motor,