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Sinochem News "The high-pressure vertical wet-winding forced-circulation hot water pump of the 2.
8 million tons/year heavy oil catalytic cracking unit has been installed and put into use for one year, and it has been running smoothly, and various technical indicators have reached the design requirements.
The next step will be the project evaluation Acceptance
.
" On June 4, Hu Chengzhi, director of the equipment room of the equipment engineering department of Jingmen Petrochemical, summarized the domestic research and development of high-pressure vertical wet-winding forced circulation hot water pumps at the equipment meeting
The development of the high-temperature and high-pressure forced circulation hot water pump of this catalytic cracking unit is the first in China, and it was jointly developed by the Jingmen Petrochemical Joint Scientific Research Institute
.
The localization of the equipment has a positive role in promoting and demonstrating the development of the same type of equipment at home and abroad.
The research and development of the high temperature and high pressure forced circulation hot water pump dates back to October 2016
.
At that time, the feasibility study of Jingmen Petrochemical's 2.
In June 2017, Jingmen Petrochemical teamed up with Sinopec Engineering Construction Co.
, Ltd.
and Shenyang Blower Group Petrochemical Pump Co.
, Ltd.
to jointly develop high-temperature and high-pressure forced circulation hot water centrifugal pumps and set up a project research and development team
.
The first thing the R&D team solves is the choice of pump type
.
The ordinary shielded hot water circulating pump adopts the shielding sleeve structure, and its pressure resistance and efficiency cannot meet the high temperature and high pressure working conditions
The axial force balance of the pump is another key point that the R&D team needs to consider
.
The higher the design head, the higher the requirements for the pump's axial force balance
In order to overcome this problem, the R&D team used hydraulic models and design software to conduct hydraulic analysis and design.
According to the deviation of bearing force measurement and theoretical calculation, the impeller shape was optimized, and the bearing conditions were optimized to the greatest extent, thereby improving the thrust bearing of the pump.
And the life of the sliding bearing, improve the reliability of the pump operation
.
In March 2020, Jingmen Petrochemical installed a circulating hot water pump for the first time, which was the first domestic installation of the equipment in China; on May 11, the equipment obtained the national utility model patent authorization; in June, the circulating hot water pump was successfully installed in Jingmen Petrochemical Operation, all technical indicators have reached the international advanced level of similar products
.
According to calculations, after the successful development of the forced circulation hot water pump unit, the price of each unit is about 3.