Why did Zibo Taihe Thermal Power Company explode?

Zibo Taihe Thermal Power Company broke the pipeline due to pipeline maintenance. According to the relevant public information, the construction of power pipe gallery of Zhongrun Avenue in key urban construction projects leads to the failure of Taihe thermal high-temperature water pipe network to supply heat normally. Scope of influence: Liu Quan Road in the east, Xiqi Road in the west, Renmin Road in the south and Zhongrun Avenue in the north, with an area of about 2.9 million square meters and 32,000 households.