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In a variety of ships, in order to ensure its navigation performance and performance, need a lot to meet a variety of different needs of mechanical equipment and electrical equipment. Marine Accessories In the ship machinery and equipment, the pump is a large number, variety and the role of important mechanical equipment. Often, we use the pumps used on ships and the port pumps serving the ship as a marine pump.
In order to ensure the normal sailing or mooring of the ship, to meet the needs of the crew and passengers, to ensure the stability of the ship, anti-sink, living, safety, Marine Accessories vitality and the completion of certain special missions, need to have a certain number, The corresponding role of the marine pump. These pumps are not only installed in the ship's power plant, cargo handling, life service safety and other special systems, but also in some ship auxiliary equipment. According to incomplete statistics.
In a variety of ship auxiliary machinery and equipment, Marine Accessories the total number of various types and different uses of marine pumps, accounting for about 20% to 30% of the total ship machinery and equipment. The total power consumed by the marine pump is about 5% to 15% of the total energy consumption of the ship, depending on the ship's performance, function and equipment configuration. In addition, Marine Accessories the price of marine pumps in the cost of ship equipment, the proportion is relatively large. In the total cost, the marine pump accounts for about 4% to 8% of the cost of the whole ship. Under normal circumstances, a medium-sized ship of marine pump procurement up to 10 million yuan. Marine Accessories Of course, military ships and special vessels do not belong to the statistics.
Due to the unique independence of the ship and its reasons in navigational capacity, carrying capacity, work performance, safety performance and size and weight requirements, Marine Accessories it is necessary to propose some special technical requirements for marine pumps other than other pumps and land pumps. These special requirements are usually referred to as marine conditions.
The development of shipbuilding industry is a microcosm of the development of national economy and the improvement of national science and technology. With the development of China's shipbuilding industry, China's marine pump, whether in scientific research, design, production and technological level have been constantly developed, improved and improving. In addition to the full absorption and utilization of other pump industry design experience, production technology and scientific research, but also because of the marine pump conditions in more than 40 years to carry out uninterrupted research work and the results obtained in the design and production Practice in the successful application and promotion.
The study of the hydraulic model is one of the early results. Marine Accessories Many of the marine pump products designed in the 1980s were generally more efficient than the original JB3559-1984 and approached or reached the international advanced level of similar products in the same period. In addition, the design of high cavitation performance pump, self-priming pump design and self-priming time calculation, Marine Accessories the selection of corrosion-resistant materials, the study of water-lubricated bearings, the development of high-pressure and transformer mechanical seals and the standardization of products, serialization And generalization have made a series of gratifying scientific research. In the solution of special purpose pump calculation method, Marine Accessories improve the pump product structure and manufacturing process, also made remarkable achievements for our shipbuilding industry and the development of naval equipment to make some useful contribution.
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