Optimize the allocation of resources to promote upgrading and upgrading self-sufficiency of high-grade chemicals
The domestic high-end petrochemical products can not meet the demand, reflecting the lack of cutting-edge technology reserves and industrialization achievements, and some high-end petrochemical product production technologies are subject to control. For example, polycarbonate and other production technologies rely mainly on the introduction of imported technologies, and the introduction of key technologies such as isoprene rubber is limited. The scale and integration of large-scale complete sets of technical equipment such as the one- million-ton ethylene have not yet been localized. In view of these circumstances, we must strengthen the research and development of key and cutting-edge technologies and enhance the support capabilities of independent innovation for industrial development. At the same time, we must seize the favorable opportunity to optimize resource allocation, adjust product mix, increase the proportion of medium and high-end products, promote product upgrading, increase effective supply capacity, and meet the requirements of economic and social development.
In technological transformation investment, it is necessary to focus on supporting the development of high-end chemical products, so that the self-sufficiency rate of high-end petrochemical products will be significantly increased, and the high-end petrochemical industry will be strengthened. In particular, it encourages the research and development of high-end petrochemical products with high added value, strong correlation, alternative import, and fills in gaps, and focuses on the development of functional products and raw materials for the electronic information industry, such as polycarbonate and fluorine resins; Structural materials and products, such as polypropylene resins for vehicles, high-performance radial tires, etc.; differentiated and specialized products for the light industry textile industry, such as caprolactam, polyphenylene sulfide, etc.; dedicated and high-end products for aerospace, such as Large-scale civil aviation tires, high water-absorbing resins, and new materials and products for energy-saving and environmental protection industries, such as polyurethanes and environmentally friendly coatings.
Satisfying the society’s demand for petrochemical high-end products depends not only on the efforts of the company, but also on the government’s planning. The relevant person in charge of the Nanjing Municipal Government recently stated that the city’s petrochemical industry will strengthen its superior base of refined oil and ethylene, extend its crude oil processing, basic chemical raw materials, chemical intermediates, fine chemical and polymer materials, and other industrial chains. Focus on the development of refined petroleum products, resin-specific materials, high-grade fiber, high-grade rubber, new energy, and life science chemicals to promote the petrochemical industry to high-end development. This idea is undoubtedly worth promoting.
Hydraulic pump is the power component of the hydraulic system. It is driven by an engine or an electric motor, and the oil is inhaled from the hydraulic tank to form a pressure oil discharge and sent to the executive component. Hydraulic pump according to the structure is divided into gear pump, piston pump, vane pump and screw pump.
The role of hydraulic pump:
Hydraulic pump is a hydraulic component for hydraulic transmission to provide pressure liquid, is a kind of pump. Its function is to convert the mechanical energy of power machines (such as motors and internal combustion engines, etc.) into liquid pressure energy. Figure shows the working principle of single plunger pump. The CAM is driven by a motor to rotate. When the CAM plunger upward movement, the piston and cylinder formed by the sealing volume is reduced, oil extruded from the sealing volume, through the one-way valve to the place where you need to go. When the CAM is rotated to the curve of the falling part, the spring forces the plunger down, the formation of a certain vacuum, the oil in the oil tank under the action of atmospheric pressure into the sealing volume. The convex wheel keeps the plunger rising and falling, the sealing volume periodically decreases and increases, and the pump keeps absorbing and discharging oil.
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