A boiler deoxygenation water supply system and method for balancing heating load in a power station

Abstract

The invention relates to a boiler deoxidization water supply system and method capable of balancing the heating load of a power station. At present, if a boiler operates in the state of deviating from the rated evaporating capacity for a long time, the efficiency of the boiler is seriously affected, and the operation efficiency of the whole power station is affected. The boiler deoxidization water supply system comprises a deoxidizer, a water supply pipeline and a heating steam pipeline. The heating steam pipeline is connected with the deoxidizer which is connected with the water supply pipeline. The boiler deoxidization water supply system is characterized by further comprising a thermal deoxidization water tank, a hot water pump, a hot water pump bypass, a water tank connecting pipeline and a steam balancing pipeline, wherein the two ends of the water tank connecting pipeline are connected with the thermal deoxidization water tank and the water supplying pipeline correspondingly, the hot water pump is installed on the water tank connecting pipeline, the two ends of the hot water pump bypass are both connected to the water tank connecting pipeline, the hot water pump bypass and the hot water pump are connected in parallel, and the thermal deoxidization water tank and the deoxidizer are connected through the steam balancing pipeline. When the heating load is low, thermal deoxidization water is stored to be used when the heating load is high, so that the load of the boiler is balanced, and the efficiency of the boiler is improved.

Description

technical field [0001] The invention relates to a boiler deoxygenation water supply system and method, in particular to a boiler deoxygenation water supply system and method that can balance the heating load of a power station. In the standby power station. Background technique [0002] According to the latest data from AskCIData, my country's industrial boiler output in 2014 was 558,100 tons of evaporation. According to the statistics of authoritative departments, my country's coal-fired industrial boilers account for about 85% of the total industrial boilers and total evaporation in the country, and consume about 640 million tons of raw coal every year, accounting for 23.4% of the total coal consumption in the country; the smoke and dust emissions are 375.2 10,000 tons, accounting for 41.6% of the national smoke and dust emissions; 5.19 million tons of sulfur dioxide emissions, accounting for 22% of the national sulfur dioxide emissions; about 2.5 million tons of nitrogen ...

AI Technical Summary

Problems solved by technology

As mentioned above, the long-term operation of the boiler deviating from the rated evaporation will seriously affect the efficiency of the boiler, and then affect the operating efficiency of the entire power plant

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