subject: China Gear Pump Equipment Manufacturing Industry Obtaining Rapid Development [print this page] After twenty years of digestion and absorption of foreign hex bolt advanced technology and innovation, especially after the research and development of a number of national major technical equipment such as large-scale synthetic ammonia, large-scale urea, large-scale ethylene cracker and post-processing key equipment, China's gear pump equipment manufacturing industry has obtained rapid development.
As for gear pump industry, which takes ethylene cracking as the representative, although currently China doesn't have the ability of supplying complete pvc fitting sets of equipment, but in recent years, the research and blow molding machine development of gear pump key equipment also has made significant progress: ethylene cracking furnace and quench boiler, ethylene cracking three machines (cracked gas compressor, propylene compressor, ethylene compressor) with 30 tons / year, a variety of cryogenic pumps, plate-fin heat exchanger (cold box) with the pressure of 7.8MPa, large ethylene spherical slitting machine tank, polypropylene reactor, large twin-screw granulator unit and so on have been successfully cip developed.
At present, every year China has been able to manufacture plastic valve more than 5 million tons oil refining equipment, 8 million tons rude oil distillation unit, 2 million tons heavy oil catalytic cracking unit, 1.5 million tons hydrocracking unit, 2 million tons residue hydrodesulfurization unit, 1 million tons delayed coking unit and so on. As for some devices that are difficult to manufacture, such as hydrogenation reactor used for hydrocracking and hydrogenation refining unit, high pressure heat exchangers, high pressure air cooler; centrifugal circulating hydrogen compressor used for hydrogenation and reforming unit, new reciprocating hydrogen compressor with 50 tons and 80 tons piston power; main fan, oxygen-enriched compressor, high efficiency cyclone separator, catalyst cooler, flue gas turbine and important process pump that used for catalytic cracking and delayed coking unit, which are all bag making machine manufactured independently by China.
In addition, the small and medium sized chemical fertilizer generator equipments, which are produced by China for a long time, have been replaced by large-scale equipment gradually because of its backward technical index. Large-scale chemical fertilizer blow molding machine equipments represented by 300 thousand tons / year of synthetic ammonia and 520 thousand tons / year of urea include the ammonia converter with the diameter of 2.8 m and CO2 gas. At present, Chinese motor major petrochemical pumps equipment manufacturing enterprises have owned better sealing products technology and equipment, the manufacturing technology of some large-scale gear pump, chemical fertilizers, inorganic chemical pump equipment has achieved a higher level, and some equipment products even have reached the level of the world's similar products. The domestic design and manufacturing capabilities of general towers, containers, heaters, heat exchange magnet equipment is more mature, and the difference between international standards has been gradually narrowed.
