According to the news of China Shipbuilding Heavy Industry Co., Ltd., the company has developed a variable frequency heat exchange unit in the central cooling system of the ship's engine room. According to the energy consumption of the operation, the unit can achieve energy saving of 20%~30% . In the field of marine applications, foreign shipowners vigorously promote green and energy-saving ships. The water pump frequency conversion technology has been widely used in foreign ships. In the domestic marine field, influenced by energy conservation and emission reduction policies, design institutes and shipowners have begun to consider the use of variable frequency water pump technology. To reduce engine room energy consumption.
    The development of the variable frequency heat exchange unit of the thermal air conditioning department of the institute is based on the actual load of the ship's cabin operation equipment and the actual temperature of the seawater. The amount of sea and fresh water is adjusted in real time to ensure that the temperature of the cabin equipment is kept within the normal range, and the sea and fresh water are reduced. Pump load to reduce the energy consumption of the pump. The unit can also realize intelligent management, automatically control the water volume of the pump according to the requirements of the cabin setting and record the real-time energy consumption data.
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HW series transmission is a new generation well-crafted product developed by SINOTRUK specially for the heavy duty truck, SINOTRUK own the independent intellectual property rights for it, with its unique structure home and aboard, its primary transmission adopts twin cuntershaft structure and auxiliary transmission adopts planetary deceleration structure, which make its bearing capacity stronger and its structure more reliable. The integrated small housing design allows legible gear and flexible gear shift.
Presently, this type of transmission is applied to be engine for the heavy duty truck which power range is 336--420 HP, it is the first choice for the domestic heavy duty truck.
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