?? Shandong shunxinda Machinery Co., Ltd. (13969559358) is located in Liaocheng Economic Development Zone, Jiangbei water city with beautiful scenery. It is a company specializing in the production, processing and sales of precision seamless pipe, cold drawn precision seamless pipe and cold-rolled precision seamless pipe
Thermal conductivity of Q345B precision bright tube for offshore oil production and Q345B for chemical industry
????? Before 2005, 52 thermal power stations will be built, and the power industry in China will develop rapidly. The total installed capacity is 54 million KW, and the power generating units built are 300000 kW and 600000 kW large units, and the required condensing tubes are all super long condensing tubes. In the development of electric power industry, the development of clean energy will be highlighted, and the power generation capacity of nuclear power will be increased by 10 times, Most nuclear power plants are coastal power stations. The development of ship industry will surpass that of previous historical periods. Offshore oil exploitation and seawater chemical industry are in the ascendant. Seawater desalination industry will develop rapidly in the mode of joint production of hydropower and hydropower, Therefore, the demand for super long condenser tubes is more urgent. The demand forecast of condenser tubes is shown in Table 1.2 production and manufacturing technology of copper alloy condensing tubes. 2.1 alloy composition of common condensing tubes is shown in Table 2. The process has the advantages of short process flow, low power consumption, low processing cost and high yield, China's innovative technology is recommended. 3. Production status of copper and Alloy Condenser Tubes at home and abroad. Copper and copper alloys are widely used in seawater desalination devices, seawater recharge power stations, marine ships, because of their good corrosion resistance, high heat transfer coefficient, excellent mechanical properties, process performance, welding performance and inhibition of marine microorganism adhesion In particular, Q345B precision bright tube is widely used as heat exchange tube bundle in evaporation and condensation process in seawater desalination and hydropower cogeneration. In the market of offshore engineering pipe, hal771 white copper pipe is mainly used in thermal power, nuclear power, warship, seawater desalination and shipbuilding Petrochemical Industry and other fields
??????? Among them, the demand prospect of Q345B precision bright tube in seawater desalination, shipbuilding and other industries is relatively good. Even if 10% of the world's copper pipe production is estimated as offshore engineering pipe, the current global output is less than 250000 tons, At present, there are about 20 domestic enterprises producing copper for offshore engineering and Q345B precision bright tubes. Among them, Zhejiang Hailiang Co., Ltd., Chinalco Luoyang Copper Co., Ltd., Shenyang Tongxing Industrial Group Co., Ltd., Guilin Lijia Metal Co., Ltd. and Jinchuan Company are the main enterprises with annual output of more than 1000t, Chinalco Luotong is a leading enterprise in the production and development of Copper Alloy Condenser Tubes, which has made important contributions to the construction of China's navy. Hailiang Co., Ltd. and Gaoxin zhangtong Co., Ltd. have developed high-performance heat exchange condensing tubes for med seawater desalination engineering, and Hailiang Co., Ltd. has also developed high-performance ultra long heat exchange condensing tubes for MSF seawater desalination process, becoming the first in China It is also the only enterprise that can cover the heat exchange copper alloy condenser tube used in the thermal desalination project, and its products are welcomed by the international market. Since 2006, Hailiang has become the largest export enterprise of copper and Q345B precision bright tubes in China for three consecutive years. At present, the annual production capacity of Q345B precision bright tubes for heat exchange is 60000 tons, In 2008, Hailiang's alloy pipe export accounted for more than 50% of the national alloy pipe export volume, making it a major domestic supplier of this product in that year. With the commissioning of Vietnam Hailiang copper and Q345B precision bright tube construction project, the annual production capacity of Q345B precision bright tube for heat exchange of Hailiang company was further enlarged in 2010, Guilin Lijia Metal Co., Ltd. is a professional enterprise engaged in the production of this product in Guozao. With the development of market economy, many domestic copper tube enterprises have begun to set foot in the production of this product. Xinxiang Jinlong group has realized B10 copper coil drawing, Jinchuan company has introduced the advanced 5500t hydraulic extrusion press, Many small and medium-sized enterprises' research institutes and universities have made gratifying achievements in the development of copper alloy condenser tube short process technology, which has made important contributions to reducing project investment, product cost and energy consumption. Due to the particularity of Q345B precision bright tube for seawater desalination and its important application requirements, Q345B precision bright tube of condenser tube should not only have excellent thermal conductivity, It is usually complex brass and white copper, copper alloy composed of more than 3 or even 67 metal elements, such as hal771, etc. its main manufacturing characteristics are: high surface quality requirements, long production process, high melting and casting temperature and extrusion temperature, large cold and hot stress, easy to produce internal and external cracks Therefore, it is very important to master the alloy characteristics, reasonably control the matching of process parameters and process parameters between each process, and fine production. Foreign developed countries attach great importance to the production and research and development of copper alloy heat exchanger tubes, and the production scale, product quality and production technology are far ahead of China, The representative enterprises are KME of Germany and Kobe Steel of Japan. The general situation of this industry in China is that the enterprise scale is small, the total production capacity is insufficient, the production technology and equipment are advanced and backward, and the product quality needs to be improved urgently, 4. The development direction of condensing tube and industry is to develop the alloy of low nickel white copper which is resistant to stress corrosion and marine organisms; The condenser tubes for auxiliary heater of various marine water quality are mostly aluminum brass; The development of high-efficiency heat exchange condensing tubes (such as internal and external threaded tubes, composite pipes, long condensing tubes) to improve product quality, overcome the technical difficulties of degreasing and degreasing, and eliminate carbon film defects on the inner surface of tubes; Vigorously promote scientific and technological innovation, develop energy-saving, environmental protection, short process new technology; To expand and strengthen the copper alloy condenser tube industry, meet the needs of seawater desalination industry, open up the international market, and establish Q345B precision bright tube industry alliance with the participation of production, research and application units
Recommended websites: http://www.l360gg.com/ ? L360 pipeline
?? The company reserves a variety of specifications of precision seamless pipe, cold drawn precision seamless pipe, cold-rolled precision seamless pipe, perennial business in Tianjin, Baotou Steel, Baosteel, Hengyang, Angang, Chengdu, Yegang, Lubao, Anyang, Jiangyin, Hongdu and other high-quality seamless steel pipe, alloy steel pipe, high-pressure boiler pipe, alloy high-pressure seamless pipe, thick wall seamless pipe, fluid pipe, structural pipe, chemical fertilizer special pipe, Petroleum cracking pipe, low pressure boiler pipe, large diameter seamless pipe, large diameter welded pipe, precision steel pipe, etc. The materials of common resources are: 10 กม 10, 20 กม 10, 45 กม 10, 16Mn, 27SiMn, 12Cr1MoV, 15CrMo, 12Cr1MoVG, 15CrMoG, 10CrMo910, 20Cr, 40Cr, 35CrMo, 304, 316, 316L, 310S, 309S, etc.