近代发电厂热力系统中除氧器的运行方式,国外已普遍采用滑压运行,即除氧器的工作压力不再是固定不变,而是随着机组负荷的改变而改变。这样,就可拆除供应除氧器汽源的撒汽管路上的调节阀,改变过去由于要保证除氧器定压运行而供给过高的撒汽压力,以及避免了由于机组负荷的下降所带来的很大的节流损失,从而提高整个热力系统运行的经济性。当然,除氧器滑压运行后 Modern power plant thermal system deaerator operation mode, foreign sliding pressure operation has been widely used, that is, deaerator working pressure is no longer a fixed, but with the unit load changes. In this way, the control valve on the steaming pipe supplying the deaerator vapor source can be removed and the oversize steaming pressure supplied in the past due to the constant pressure operation of the deaerator can be changed, and the reduction of the load on the unit can be avoided The resulting large throttling losses increase the economics of the entire thermal system. Of course, deaerator after sliding operation