Automatic water-replenishing of an iron boiler for continuous steaming

摘要

A control method for automatic water-replenishing of a boiler iron under the condition of continuous steaming includes a normally-closed pressure switch that can control power on/off of the boiler according to the pressure in the boiler, a normally-closed thermostat for keeping the boiler in a thermostatic state and a temperature sensor that can sense the temperature of the exterior of the boiler. The method includes (1) judging whether the thermostat switch is off; if yes, step (4) is carried out, and if no, step (2) is carried out; (2) comparing the real-time temperature detected by the temperature sensor with a set point when the pressure switch is off; if the real-time temperature is higher than the set point, step (3) is carried out, if the real-time temperature is lower than the set point no water-replenishing is carried out; (3) controlling the pump to pump water into the boiler; (4) controlling the pump to pump a relatively large amount of water into the boiler.