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The renovation project of the low-pressure steam buffer tank for gas production at Jinfeng Coal Chemical was successfully completed. Author/Source: Jinfeng Coal Chemical. Date: 2022-10-27. Clicks: 7. Recently, more good news came from Jinfeng Coal Chemical’s ongoing improvement projects; the renovation of the low-pressure steam buffer tank for gas production was completed successfully, and the corresponding inspection and verification procedures were finished. Before the modification, when the low-pressure steam pressure in the system fell below 0.5 Mpa, it was impossible to meet the steam requirements of the gas generator, even with all the self-regulating valves on the buffer tank fully open. Moreover, the greater the pressure difference before and after the buffer tank, the more energy was wasted. To address this issue, the project team conducted thorough research and calculations based on the changes in steam density under different pressures and temperatures, and decided to replace all the valves before and after the self-regulating valves in buffers No. 3 and No. 4 of the AB system, as well as the saturated and superheated steam inlet valves leading to the buffers, along with the pipelines connecting them. After tasks such as material sorting and pre-preparation, the project team took advantage of a system shutdown to quickly mobilize the construction workers to carry out the work; through nearly a week of effort, all the equipment and pipelines were installed. After the project is completed and put into operation, a pressure of 0.4 Mpa in the low-pressure steam pipeline network is sufficient to meet the steam requirements of the gas generation furnace, providing greater stability as well. Optimizing the operation of the gas generator furnace not only reduces the coal consumption of such furnaces, but also increases the power generation efficiency of cascade generator sets by 5%. Calculations show that this approach can generate annual savings of 518,400 yuan, contributing further to the company’s goals of saving energy and reducing consumption in order to overcome financial difficulties.