1962年以后,国外客車电开水炉用的电热器(图1)功率为2.2千瓦,圓简直径40毫米,圓筒长340毫米。在电开水炉箱体頸部3的底板2內,以凸緣1的螺紋将电热器安装在生水箱內(图2)。按制造要求,电热器的凸緣应按a—a綫安装。螺旋电阻絲作用部分 After 1962, the electric heater (Figure 1) for foreign bus electric water heaters had a power of 2.2 kilowatts, a diameter of 40 millimeters in diameter and a cylinder length of 340 millimeters. In the bottom plate 2 of the electric boiler body neck 3, the electric heater is installed in the raw water tank by the thread of the flange 1 (FIG. 2). According to manufacturing requirements, the heater flange should be a-a line installation. Spiral resistance wire role part