The Daqing Zhonglan Petrochemical Co was able to accomplish the task, for the first time, of shutting off its steam supply for maintenance operations, Sept 12 to 19, which helped prevent resource waste and cut maintenance costs. In the past, the company always kept one boiler operating during maintenance process to keep some steam for fire fighting purposes, which resulted in a huge loss of resources.
To guarantee safe procedures without the steam supply, the company made alternative arrangements and put the fire brigade on stand-by for any emergency. It estimated that shutting off the steam for the 7-day maintenance work this year saved more than 500 tons of coal and more than 200,000 kW hours of electricity, and cut costs by more than 500,000 yuan.