China's coal resources are very abundant. In recent years, the clean coal gasification technology has developed rapidly. The high-pressure inlet high-temperature grey water circulation pump is an important equipment for the clean coal gasification process. The pump also adapts to larger flows, higher inlet pressures, and more coal types. The direction of sexual development.
Recently, the “Development of High Pressure and High Temperature Grey Water Circulation Pump for Coal Gasification Process†project completed by Beijing Aerospace Power Research Institute Wang Xiaodong, Yu Haili, Ding Yongqiang, Hao Xiaolin, Tian Guowen, Hou Jie, Lin Wei, Liu Haili, Ren Wei, and Deng Jing He won the second prize for the scientific and technological progress award of the China Machinery Industry Science and Technology Award. It is reported that the successful development of the pump has effectively ensured the stable operation of the coal gasification plant and provided strong technical support and support for the advancement of the industry's technological progress.
It is understood that due to the very special applications of the pump, there are few coal gasifiers abroad, and there are fewer manufacturers capable of designing and producing such high-temperature, high-pressure and wear-resistant pumps, and the price is high. The spare parts supply period for equipment operation and maintenance is long.
Wang Xiaodong, the main researcher of the project, said that the high-pressure inlet high-temperature grey water circulation pump designed and produced by the company is an innovative product independently designed, developed and protected by intellectual property rights. It has been authorized three patents.
“In the process of developing this pump, we solved a number of key technical problems, such as sealing and axial forces. Especially for the characteristics of medium pressure and solid particles, we changed the design concept of the over-current part and used the diffuser to diffuse the pressure. In terms of structural design, the pump shell's diffuser function and pressure-relief function are separated from each other. The selection of the pump shell is mainly considered from the standpoint of pressure. Only the impeller, leaf guide diffuser, and liner plate have higher flow velocities. The relevant parts are made of wear-resistant materials, which innovatively solve the problems of structural design and material selection, said Wang Xiaodong.
At present, the pump has been widely used in various domestic coal chemical process production enterprises, such as Shenhua Ning coal-to-coal oil project, Zhongtian Hechuang Ordos coal-to-olefins project, Sinopec Nanjing Chemical Industry Company coal hydrogen project, China Coal A total of more than 200 coal gasification projects, such as the Group's olefins project, have created remarkable economic and social benefits. The products that are in operation are stable and efficient, and they are recognized and praised by users. The market share has an absolute advantage. Up till now, the cumulative realized contract amount is more than RMB 400 million yuan. The pump can also be used as a large-scale circulating pump in refinery, PTA, and medium-pressure industrial boiler installations. The market has great potential and has a wide application prospect. . (Fu Zhenglin)
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