BOILER TANK FOR STEAM BOILER

摘要

PURPOSE: A boiler tank for a steam boiler is provided to weld directly a sensor pipe with a built-in water level sensor on a casing, thereby guaranteeing the enough support stiffness of a connection part between the sensor pipe and the casing against deformation. CONSTITUTION: A steam discharge pipe(12) and a supplementary water inlet pipe(11) are connected to the upper and lower parts of a casing(10a). A sensor pipe(17) has a built-in water level sensor(16). The sensor pipe passes through the upper wall of the casing perpendicularly and is inserted to the inside of the casing. The upper end of the sensor pipe assembled with the water level sensor is formed in the form of the flat plate. The upper end of the sensor pipe is exposed to the outside through the upper wall of the casing. A water hole(17a) and an air hole(17b) are formed in the bottom part and top unit of the sensor pipe.