Automatic water-replenishing of an iron boiler for continuous steaming

摘要

A control method and device 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 and a temperature sensor that can sense the temperature of the exterior of the boiler. The control method and device compares the real-time temperature obtained from the temperature sensor with a set point at which the pressure switch is turned off; if the real-time temperature is higher than the set point, step (2) is carried out; if the real-time temperature is lower than the set point no water-replenishing is carried out; (2) a pump is controlled to pump water into the boiler.