Method and Device for Automatically Replenishing Water for a Boiler Iron Under the Condition of Continuous Steaming

A control method of automatic water-replenishing of a boiler iron under the condition of continuous steaming, which comprises 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 method comprising the following steps:

• (1) comparing the real-time temperature obtained from the temperature sensor with the 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) controlling the pump to pump water into the boiler.

A control method of automatic water-replenishing of a boiler iron under the condition of continuous steaming, which comprises 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 a temperature sensor that can sense the temperature of the exterior of the boiler, wherein the method comprises:

• (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.

A control device of automatic water-replenishing for a boiler iron under the condition of uninterruptible steam, which comprises a normally closed pressure switch that can control power on/off of the boiler according to the pressure in the boiler and a normally closed thermostat for keeping the boiler in a thermostatic state, at least comprises a judging unit and a detecting module;

• the judging unit is used to judge whether the thermostat switch is off;
• if yes, controlling the pump to make a relatively large amount of water be pumped into the boiler, or else the detecting module is carried out;
• the detecting module is used to detect whether the steam can be ejected;
• if yes, opening the electromagnetic valve to eject the steam and controlling the pump to make a relatively small amount of water be pumped into the boiler.