en.Wedoany.com Reported - On April 1st, China Energy Engineering Group Co., Ltd. (CEEC) announced that the Huaneng Haimen million-kilowatt project successfully produced qualified demineralized water in its first attempt. The raw water was pressurized by the ultrafiltration feed pump, filtered sequentially through the ultrafiltration self-cleaning filter and ultrafiltration unit, then pressurized by the reverse osmosis high-pressure pump and filtered through the primary and secondary reverse osmosis units. After passing through an ion exchanger to remove cations and anions from the water, high-quality demineralized water was finally produced. Measurements showed the optimal conductivity reached 0.093 microsiemens per centimeter, with all data indicators meeting the requirements for demineralized water.

Faced with adverse conditions such as the workshop being located within the existing Phase I plant area with limited space and the need to connect with the original system, the project team took proactive measures without delay or reliance on external assistance. In response to significant deviations in the initial design drawings, technical personnel conducted on-site surveys and independently carried out secondary design, effectively saving construction time. During the connection to the Phase I unit's water supply system, which had a short construction window and a wide impact range, the project department scientifically organized manpower, rationally arranged work sequences, and carried out multi-point simultaneous operations, smoothly completing the system connection. The Thermal Power Department and the Engineering Department worked closely together. During the commissioning process, command was smooth, division of labor was clear, and execution strictly followed the plan, ensuring the orderly progress of the demineralized water system commissioning.

The successful first-time production of demineralized water has laid a solid foundation for the comprehensive launch of subsequent critical milestone tasks, including boiler hydrostatic testing, boiler chemical cleaning, and steam blowing. (China Energy Engineering Group Co., Ltd. / Yan Yujing)

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