The boilers adopted the style of EPT may be permited to supply NaOH with rations. There are two ways to inject NaOH to boiler water : continuous feed and discontinuous feed .

• EPT水工况允许向炉水中加入一定的氢氧化钠,氢氧化钠的加入方式可采取间断和连续加入,间断加药方式指的是在炉水pH值偏低时,向炉水中加入氢氧化钠将pH值调节到规定的范围内;