Electric heating regulator is a high-pressure container, consisting of vapor-liquid two-phase space, which upper part of the saturated vapor space, the lower half of the saturated water space. 
 Sprayer in the vapor space of the regulator has to take over, take over the relief valve and safety valve to take over; water space are equipped with electric heater, the bottom of the wave tube and the hot section of the reactor coolant system piping connections. 
 Electric heating regulator is widely used in pressurized water nuclear power plant, electric heating regulator of a variety of structural types, depending on the application objects, their shape can be broadly divided into three categories, namely, vertical cylindrical The bulb type and boiler type. 
 Electric heating regulator used in the nuclear power plant are essentially vertical cylindrical bulb regulator in the U.S. Army Pocket power reactor APPR-1 used the boiler regulator only a design published in the patent literature has no practical application. 



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