During the oxygenation treatment process

the dissolved oxygen content will fluctuates largely and is difficult to regulate when the unit load fluctuates greatly. To solve this problem

Xi'an Thermal Power Research Institute Co.

Ltd. has developed the liquid constant automatic oxygenation technology. In stead of adding gaseous oxygen

this technology uses the oxygen dissalving machine to transport the liquid oxygen-enriched water

to ensure that the dissolved oxygen content is basically constant when the unit load fluctuates greatly. Taking the 1 050 MW No.1 unit of a power plant in Huadian as the example

after applying the liquid constant automatic oxygenation technology

the dissolved oxygen content can be automatically controlled at the set value ±3 μg/L. Thus

the problem that the oxygenated equipment can not operate normally with large oxygen fluctuations in units is solved. This technology provides a reliable technical guarantee for safe and stable operation of the oxygenated units

it has got a good application effect in many power plants.