Tag Archives: steel casting manufacturers

Valve industry in national economic development, as an important part of preparing manufacturing, play a very important role. As the level of China s domestic and international valve manufacturing advanced level there is still a gap, a lot of high-parameter, high temperature and pressure, high-pounds of the original key has been imported valve, the valve in order to urge the localization of the State Council issued ” speed up the revitalization of equipment manufacturing industry views “, the national authorities made in accordance with national requirements of major equipment, has made a series of major plans, led by the National Development and Reform Commission, China General Machinery Industry Federation and China Machinery Industry Association, together with the deployment of major equipment developed for the relevant area of ??the valve localization program, and has coordinated with relevant departments, is now made of the valve the valve industry in China have formed a consensus.

After 20 years, especially in recent years, scientific research, design, manufacture and users a combination of efforts, joint research, has been fruitful. In the “East”, “South”, “Three Gorges” a million kilowatts of nuclear power units, one million tons ethylene renovation project, supercritical and ultra supercritical thermal power, oil and gas pipelines, coal chemical industry, large ships, cities sewage treatment and other major projects and nuclear power engineering equipment, petrochemical, metallurgy, power station and other areas, in addition to a small amount of high-parameter safety valve and control valve to be imported, the achievement of the localization of the valve, thus changing the material and equipment subject to long valve key foreign situation. And to seek as much as possible in the short term major projects and key valves to achieve localization, or part of the localized, so that the valve manufacturing in China lead the world.

heavy forgings

From zero speed up the pace of Chinese-made valve valve localization, has always been an arduous task. Localization of the original advocates the valve is not easy, also encountered layers of resistance, more debated. After the older generation valve industry experts and the nuclear industry sub-sector research and research coordination, can be used domestically, with domestic firm, in the localization of walking a fine line as far as possible, for the country to save foreign exchange.

China s domestic valve is nothing of the original, from scratch, and from nuclear power plants and nuclear chemical and petrochemical equipment based on the localization of the beginning in the 1980s took over the first nuclear power plant about 600,000 key engineering projects, and later When engaged in Qinshan Nuclear Power Plant, Nuclear Engineering, Ningbo valve factory as the localization of pipe valves pilot enterprises for valve contributed to localization. China s reform and opening up efforts to increase the localization of the valve, the valve industry with the manufacturing process has improved continuously, and many enterprises to adopt advanced resin sand molding line castings off the box blank, casting chemical composition using direct-reading spectrometer for rapid analysis , the use of cobalt-60γ-ray detection of casting defects; forging die forging and multi-use tires and other advanced forging technology. In the 21st century, the accelerated pace of the valve made in the localization of the major projects with the results.

The State Council issued the “speed up the revitalization of equipment manufacturing industry views”, the drive the overall revitalization of equipment manufacturing industry. To this end, together with China National Development and Reform Commission and the China Machinery Industry Federation and other national authorities through the Association has long been proposed for the “15″, “during” the progressive realization of the localization of major equipment valve plan, which proposed to achieve million-kilowatt nuclear power plant critical valves, valve megaton large ethylene equipment localization, etc., through the introduction of key technologies and self-development, and in the regulations and policies to a number of concessions, so the valve-related enterprises to seize the opportunity to actively active state to do the valve localization. Consensus from top to bottom, the valve localization has made encouraging progress.

Nuclear localization of the valve made significant progress in nuclear power plant is an important key to the valve device, a long time, mainly rely on imports of foreign technology blockade has been imposed on my country, to earn high profits, and thus become a constraint on China s nuclear localization one of the bottlenecks. Development of domestic nuclear valves started in the early 1960s. Up to now after decades of efforts, China has formed a scale of nuclear valves design, test, manufacture, testing capabilities, and Qinshan nuclear power plant, two construction provides a large number of nuclear valves for nuclear valve made important contributions to localization.

cast steel valves

Domestic backbone enterprises positive action initiative to overcome the difficulties for the country share those concerns, to provoke a nuclear R & D and manufacture of valves made of the burden. To the SUFA, Shenyang Golden Age, Dalian higher number of old enterprises, and achieved the qualification design and production of nuclear valves, valve in China s nuclear localization process to achieve results. At present, there are 19 enterprises of the National Nuclear Safety Administration issued a civil nuclear pressure equipment design and production license is, can design and manufacture nuclear valves. Its design, production valve types are gate valve, globe valve, regulating valve. The 19 companies with the design and production of nuclear grade valves ⅰ enterprises 5 (in the SUFA, Shen high, big high, the valve, Shanghai good work). At present, China has successfully developed a nuclear pressurized water reactor nuclear island ⅰ level electric valve, check valve, electric bellows globe valve, fast breeder reactors use nuclear ⅱ level electric cut-off valve bellows has a high sodium level nuclear valves. In 2003, the SUFA to COSTIND declared a “critical valve design and manufacture of nuclear technology research and development” project, decided to fully develop the key five nuclear power plant valves to break the international monopoly. In 2006, the National Development and Reform Commission review of China Machinery Industry Federation demonstrated in SUFA, Shenyang and Dalian flourishing high “million-kilowatt pressurized water reactor nuclear power plant valves made of industrial projects,” three nuclear localization valve project, implementation of the country will form the core of the nuclear localization of the power valve, so that nuclear power projects under construction in China is no longer controlled by others.

Last year, with the red river, Ningde improved second-generation nuclear power projects under construction and three, Haiyang nuclear power technology such as the introduction of three generations after the commencement of the work of digestion and absorption, the localization of nuclear power equipment for nearly two years have marked progress. Qinshan Phase II expansion project to rely on, the valve industry in recent years have been developed with the advanced level nuclear valves and valve manufacturers through technical evaluation are: the SUFA has completed the nuclear level of fast start closed isolation valve, regulator of electric pressure relief valve, low dropout voltage swing check valve and two hard-core duct sealing containment isolation valve 14 specifications, the variety of prototype manufacturing and testing through a variety of types and provincial identification; Jiangsu supernatural powers of the valve core 2 containment isolation valve; Dalian high nuclear grade valve valves, gate valves and check valves; Shanghai plant main steam isolation valve ball; Jiangsu Wujiang Dongwu mechanical nuclear grade and nuclear main steam safety valve safety valve and other auxiliary systems level 2,3; Universal Valve Group Zhejiang nuclear two cut-off valve; Power Station Auxiliary Equipment Factory, Changzhou, Jiangsu hzd, hqb type 1e nuclear grade valve actuators; Yangzhou power equipment factory built device with a buffer of nuclear grade valve actuators; Tianjin-day two-way valve k1 class nuclear grade valve actuators; Shijiazhuang valve an air separation plant nuclear grade valve; Suzhou Neway Valve nuclear level electric valve, electric valve core 2, core three electric valve; and Shenyang Golden Age of the nuclear level high pressure electric gate valve and nuclear level Swing check valve and pressure valve plant in Suzhou high nuclear grade valves and a number of nuclear valves, has passed the National Federation of Machinery Industry sponsored research and new technology sectors identified. Recently, SUFA and complete nuclear level, the nuclear two isolation valves open and close rapidly, the proportion of spray valve, seal air containment isolation valves, electrical pressure relief valve, main steam isolation valves and other prototype development, and Type-tested and other related assessment and completion of the cold function test, to nuclear power engineering needs.

Meanwhile, Pakistan s Chashma Nuclear Power Plant Phase II project c2, in addition to high-tech control valves, other are localized, including air release valves, back pressure regulating valve core 2, core 3 pneumatic regulating valve in part by the Shanghai Automation Instrumentation seven plants provide; process Central SUFA valve part is provided by the Tianjin Bailey electric actuators provide two-way. Zhejiang East China provided nuclear electric gate valve.

The past two years, nuclear valve manufacturing companies in the Guangdong Nuclear Power Group, respectively, and other owners of units in the nuclear group, the joint in a number of key R & D on nuclear valves made progress. According to the current Qinshan, red river project tenders nuclear valves, valve industry has been combined with the ability and performance, Red Valve Unit 1 and 2 along the river will reach the localization rate of 35%; for another 1 to 2 years research and development, nuclear valve manufacturing will have a major breakthrough in the Unit 3 and 4 on the red river is expected to achieve the localization rate of 60%.

With the successful development of nuclear valves, valve industry, some of the products indicates that China has entered the high-end, reflecting China has reached a certain valve manufacturing standards. The products in the market is vast, but also for the valve industry provides new opportunities. China Guangdong Nuclear Power and the SUFA, Dalian High-valve, valve, Jiangsu supernatural powers signed a hard-seal butterfly valve lock valve hydraulic control valve stainless steel ball valve gate valve filter valve Xuan Yu, “China-made nuclear power valve of Development Cooperation Agreement “, marking the China Guangdong Nuclear Power Group and joint research and development of domestic enterprises nuclear valve valve work has already started.

Rapid development of domestic high-end valve

1, the localization of the previous year-end valve, the valve s self-developed south, and through hundreds of experiments large diameter of 5 m vacuum valve came into operation, the valve into the first large-scale defense of domestic wind tunnel tests. For the test device provides two-way vacuum seal valve and special regulator, boost, “Chang E” Ben has made important contributions. In 2005 the company successfully developed the world s first zero-leak “adjustable metal sealing butterfly valve,” alternative energy, materials, a greater amount of the valve, globe valve, has successfully developed far below the international standard closing time of 0.5 seconds The “quick-closing valve electro-hydraulic linkage” domestic high-end valve.

Suzhou in SUFA and high pressure valves, high pressure valves for China s Lanzhou nuclear chemical system provides a number of high-end localization of the valve, including: the SUFA was originally in the 60-70 years, independent research and development of the torpedo vacuum valve, drum vacuum valve products, has served as a main product localization and high-volume production, a key chemical system valves in nuclear torpedoes vacuum valve to achieve a localization. Shanghai Valve Factory in the past 40 years involved in a number of major national projects, such as the 1962 national nuclear chemical enrichment project to provide stainless steel valves.

Localization of the recent critical valve also yielded results: Valve Group and Zhejiang University Paul a joint research and development of high-end ultra-low temperature valves, valves for the Shenhua Group, Zhejiang take over of “coal hydrogen” section in the localization of a number of devices R & D of high temperature resistant metal seal made of ball; Lanzhou High Pressure Valve Co., Ltd. of Sinopec Puguang independent research and development of anti-localization of high-sulfur gas pressure flat gate valve recent successful trial; Zhenjiang City, Jiangsu Province, valve plant Energy saving R & D play a series of special valves and other sulfur recovery unit, and the country gradually promote the application of these high-end valve to achieve a localization. Beijing Aerospace Petrochemical Technology and Equipment Engineering Company developed “the ability to meet the backup relief valve fast switching device” and “non-flow-type pilot-operated safety valves suddenly open,” two new localization.

iron castings

In SUFA, Lanzhou High Pressure Valve has become large-scale ethylene megaton complete sets of equipment of special valves made a major supplier of SUFA s self-developed hydrogen device the Qing Jiao flat gate valve has been successfully applied to the East chemical localization projects. In SUFA available only in the field of special valves nearly $ 100 million for technology research organization dedicated R & D, so that large ethylene equipment special valves made of a major breakthrough. Zhejiang East China successfully developed the hydrogen valve and valve ethylene valve, through continuous efforts to fully solve the technical problems, the development of China s first hydrogen valves and new products such as ethylene valve and into a butterfly-free wear spherical only return valve, Chengdu Branch of Chinese low-temperature test equipment, high-temperature test equipment; Sijie Chemical Development of “co2 gas pressure regulating valve special reference to urea” in Zigong City, the second pressure valve development and production of wear-resistant slag, Katz development and production of high-temperature valve; Sichuan Power Smart Valve industry encryption security table before the valve, the valve to rewrite the domestic dependence on imported hydrogenation. Seong valve successfully developed large-diameter hydraulic turbine inlet valve, ring-jet flow control valve, 2.5 m and 3 m turbine inlet valve vacuum valve.

2, supercritical, ultra-supercritical thermal power generating units and the localization of Harbin, Harbin Boiler valve valve valve technology of foreign companies face the blockade, in 2004, developed China s first super-critical block valves, but also have R & D Yuhuan Power Plant Unit 1 for the one million kilowatts of ultra-supercritical units supporting unit supporting supercritical steam and water valve, check valve, plug valve and water pressure test units supporting the whole amount of supercritical type safety valve, large diameter high gate end of the valve. And supporting the current network has been successfully run, the move indicates that China has mastered the world s most advanced ultra-supercritical thermal power technology, but also to our power generation equipment manufacturing capacity and technical level on the stage. Last year, they forge welding of large diameter high pressure power station valve also been successful.

Henan Kaifeng High Pressure Valve for the highest degree of localization million units – Huadian Power International Zouxian ultra-supercritical generating unit # 8 group, the successful development of 2x1000mw ultra-supercritical generating units and a number of electric blowpipe valve control valve to achieve domestic the largest units, the highest parameters, the maximum diameter of the valve localization. In related fields hit a number of “first in the country”, and ultra-supercritical generating units for our special valve made a significant contribution to the localization; Zigong Dongfang Boiler valves for the 600mw supercritical units Datang Xiangtan 一号 furnace provides 172 Taiwan forged globe valve, and subcritical, supercritical boiler units supporting arguments valve; Southern Valve has recently successfully developed supercritical and ultra supercritical localization valve has reached the advanced level.

3, the localization pipeline valve key Zigong High Pressure Valve Forged Steel welded large diameter pipe valve, Shanghai Neles? Jamesbury valve three-stage pipeline structure of the valve, Chengdu wind large diameter flat gate valve valve, Suzhou Neway Valve ball in the “West-East” pipeline successfully. And Suzhou Neway Valve, Zhejiang Wuzhou valves have been successfully developed 56-inch large diameter long pipeline welded ball valve, the weight of 40 tons, the highest in China valve; Bethel valve group self-developed domestic The first all-welded ball valves, designed for underground pipeline laying on the Shanghai Neles? Jamesbury valve independently developed all-welded ball valve through the national technical appraisal; Lanzhou established to produce high-pressure high-pressure valves valve for the main products of the production scale, technology and equipment in the industry a leader, now the new large-scale production of Lanzhou valve group, manufacturing base.

Valve made of the future direction of development in the localization process to achieve the valve, according to China s equipment manufacturing industry, especially in the valve industry in national economic development in the position, the valve of the companies pay attention to strengthening the capacity of independent innovation, targeting major national industrial projects, major scientific and technological innovation projects, the implementation of major breakthroughs, to adjust our product mix to create enterprise innovation system, to enhance the comprehensive competitiveness of enterprises so that enterprises face the fierce market competition and various industry continues to make technology and economic needs, so that each of our businesses contributed to the localization of the valve.

China Branch of the valve through the Association executive vice president, chief engineer of Zong in SUFA recently listed the future development of the valve industry valves made specific localization of the direction and requirements, a clear localization of the valve further to achieve the goal: the future valves in nuclear power, ultra-supercritical thermal power generation technology, high temperature and pressure valve is the main research direction, we need to carry out its key technology breakthroughs; in large pumped storage power plant, also made a large diameter of the ball, including castings and forgings, control and design techniques; large-scale nuclear power plant in one million kilowatts, including valve design, manufacturing, laboratory tests, experiments need to re-type attack projects; in large-scale ethylene, coal chemical energy transformation, pta large-scale installations and other special equipment and operation are required to key shuttle valve. The valve industry for our future development, technology research have clear objectives, to establish the industry s product development and industrial innovation platform that allows our business to form a technological innovation system. However, the valve industry is product quality, high precision is still lagging behind other aspects of the field, on the whole country can not meet the needs of high-tech industry development in the petrochemical industry such as high-pressure polyethylene of high-pressure valve Bowen, ethylene cracking furnace The clear focus flat valve, more than 2500 pounds of ethylene, or ultra-low temperature ultra-high temperature and pressure valves also need to import the key, some special material valves, control valves including all dependent on imports. Coal energy future major work for the state the main direction of stone in the coal hydrogenation, after hydrogenation heating and structural requirements for valve materials is high, many conditions need to cast from, we need to overcome the key cast.

Nuclear valves required sealing performance and reliable nuclear power plants currently several key nuclear valves rely on imports. Although the valves were better capture, but a greater gap between the valve actuator, drive by a lot of critical import. In its series of special packages and supporting other conditions, there are gaps. For example, the state of valves used in many key projects, such as high parameters, environmental protection, energy saving valve is also dependent on imports. To understand the state of its key industries, engineering, localization of the valve, the valve to achieve the full Chinese localization.

Zhang said: valve industry should be based on optimizing the industrial structure, energy saving, innovation, reform and opening up, people-oriented, etc., accelerate the establishment of self-development of technology innovation to develop new systems. Valve industry products to the “Eleventh Five-Year” in the late localization, special valve on the large-scale ethylene to cover 95-100%, coal chemical industry mainly special valve key to solve the high-temperature hydrogenation sealing materials, as well as drive to attain some control over 90%; ultra-supercritical power plant technology, etc., the proportion of domestic valve to reach 80% -100%. To achieve the key technologies critical valves and localization of the arduous tasks, as long as we work together valve counterparts around the same goal, the valve will be able to achieve localization.

carbon steel casting

Seize the opportunity to urge the valve co-localization of higher level, executive vice president leaves China declared 2008 the international co-valve five-second meeting clearly stated: the valve industry in national economic development, as an important part of preparing manufacturing, play a very important role in the important areas of people s livelihood, such as the one million kilowatts of nuclear power, large-scale high-efficiency clean power generation, supercritical thermal power, gas-steam cycle, large-scale hydroelectric and pumped storage, large air-cooled power plants and other large-scale circulating fluidized bed boiler unit and so on; one million tons of large ethylene equipment, xylene, terephthalic acid, polyester equipment; large-scale coal chemical equipment; large underground coal mining, lifting and cleaning delivery equipment; large ships, large chemical vessels, aircraft, cng; air pollution control urban industrial wastewater treatment, distribution network and other aspects of transformation of a large number of domestic demand for supporting the valve to the valve manufacturing industry to meet national requirements, to achieve the industry s scientific development, the first development, sound and rapid development, domestic and foreign markets to seize the opportunity to forge ahead, and strive to create a worldwide China s main production base of the valve.