KZL型锅炉给水管止回阀,一般都安装在省煤器出口通向锅筒的管道上(见图)。但是,这种装置的止回阀很容易失灵。 图中可知,由于循环阀门打开的时间,正是锅炉不需给水的时间,炉水通过失灵的止回阀直接流向循环阀门而返回回水箱(或除氧器),给水又不能进入炉内,因而会造成锅炉严重缺 KZL boiler feed pipe check valve, are generally installed in the economizer outlet pipe to the drum (see photo). However, check valves for this type of equipment can easily malfunction. The figure shows that, due to the opening of the circulating valve time, it is the boiler without water supply time, the boiler water through the failure of the check valve directly to the circulating valve and return back to the tank (or deaerator), water can not enter the furnace, Which will result in a serious shortage of boilers