【Ten Years of Rapid Development in Chemical Engineering Equipment】TDG-type subcritical high-temperature and high-pressure boiler feed pumps for coal gas power generation projects in Shenyang, 1983–2019

Thread Content

The chemical processing industry has seen significant development over the past decade; let’s praise the prosperity and strength of modern China. Wishing everyone a happy New Year, and may their families be safe and healthy. By contributing our ideas, we can create a more lively atmosphere for discussion. HaiChuan becomes even better with your participation – we invite everyone to engage more actively in forum discussions. In May 2019, Shenyang Industrial Pump Factory (Co., Ltd.) successfully delivered two TDG-type subcritical high-temperature and high-pressure boiler feed pumps for the Guangxi Shenglong Metallurgy project carried out by Wuhan Urban Environmental Protection Engineering Technology Co., Ltd. This pump is mainly used in the coal gas power generation project for the technological upgrading of Guangxi Shenglong Metallurgical Industry. This is another type of boiler feed water pump developed by our company, one that features high technical complexity, significant manufacturing difficulties, and a high critical temperature – building on our previous self-developed ultra-low temperature ethylene pumps. The pump has a flow rate of 550 m3/h, a total head of 2550 meters, and is used to transport high-temperature deoxygenated water at 190 degrees Celsius. Its efficiency is 85.3%, and the power required for testing it in water conditions is 4500 kW. High-temperature and high-pressure subcritical boiler feedwater pumps require that the quality and grade of all supplied materials, associated equipment, designs, drawings, as well as equipment and components, together with the inspection methods for them, and the manufacturing and acceptance processes for such equipment and components, be all far higher than those applicable to ordinary pump systems. It is reported that this power generation unit belongs to the new type of 100MW ultra-high temperature subcritical gas-fired units, featuring high power generation efficiency as well as energy conservation and environmental protection properties. When connected to the grid, it consumes 2.6 m3 of gas per kilowatt-hour of electricity generated, which is 0.2 m3 less per kilowatt-hour compared to other power generation units; merely through gas savings, this can generate significant benefits for users on an annual basis!