It is reported that in the next 10 years, China will have over 20000 kilometers of oil pipelines to be constructed, including cross-border oil pipelines from Russia and Kazakhstan. In addition, after the "West East Gas Pipeline", China will also build over 20000 kilometers of cross-border gas pipelines and branch lines. These projects require approximately 20000 large diameter pipeline ball valves, small and medium-sized ball valves, and flat valves; We will also build 10-20 large-scale refineries with a capacity of tens of millions of tons, build, renovate, and expand a batch of large-scale ethylene plants with a capacity of 800000-1 million tons. There are also more than ten sets of approved and pending large-scale PTA plants with a capacity of 500000 to 600000 tons per year, which will provide a huge market for the valve industry; The construction of large-scale fertilizer and synthetic ammonia plants will also provide opportunities for the valve manufacturing industry; In addition, direct coal liquefaction is likely to form a new industry. Due to the high working temperature, pressure, and solid particle content of the coal direct liquefaction process medium, there are high requirements for valves, which will form an emerging market.
Recently, it was learned from the Valve Branch of the China General Machinery Industry Association that in the next 10 years, new valve products supporting major engineering construction projects such as thermal power, nuclear power, hydropower, large-scale petrochemical industry, oil and natural gas gathering and transportation pipelines, coal liquefaction, and metallurgy will become the focus of development, and are expected to lead the rapid growth of the entire valve market.
Therefore, the valve industry should establish enterprise groups, increase investment in technology, and develop high, large, precision, and cutting-edge valve products; Strengthen product standardization work to keep up with the development needs of the situation in terms of quantity and level.
According to experts from the association, when developing new products of these valves, attention should be paid to the promotion and application of new process technologies. For example, when developing large-diameter integral ball valves for long-distance pipelines, integral welding technology should be used; In order to improve the corrosion and erosion resistance of valve sealing surfaces, a few manufacturers have started using the supersonic flame spraying tungsten carbide process. At the same time, attention should be paid to the use of nanoscale materials for coating modification of sealing surfaces and the development of laser cladding technology. In addition, the cobalt chromium tungsten plasma wire feeding automatic surfacing welding process, which has been applied in the valve industry for many years, should continue to be promoted to replace manual welding and ensure the quality of valve sealing surfaces; In order to achieve automated control of engineering device process flow, the development of intelligent electric and hydraulic transmission device valves should be strengthened; Accelerate the development of new transmission methods such as magnetic transmission, develop a new series of closed magnetic transmission valves, eliminate leakage points between the valve stem and packing, and make them suitable for flammable, explosive, toxic, corrosive media and pipelines that require locking and avoiding misoperation.
