摘要:
A steam ironing device includes a water supply device, a steam generator for generating steam, a heating element for heating the steam generator, at least one atomizating device, a valve provided in a flow path between the steam generator and the atomizing device, and an electric pump for delivering water from said water supply device to said steam generator. To obtain wet steam at the atomizing device, the ironing device includes a control device for controlling the power of the heating element of the steam generator, for controlling the flow rate of the pump, and for controlling the opening and closing of the valve, the valve being open if the ratio between the flow rate (g/min) of the pump and the power (W) of the heating element is in a range of 1:20 to 1:38.
摘要:
The invention provides an ion exchange cartridge (13), in particular for a domestic appliance that comprises between a water inlet (1A) and a water outlet (2A) a weak acid ion exchanger in the H+ form (5), followed by a strong acid ion exchanger in the Na+ form (7). This cartridge may be compact because it removes hard scale forming ions only. The cartridge may further comprise a first (16) and a second probe (17) to measure hard scale causing ions by a differential measurement of the conductivity of incoming water and water that has passed one or both ion exchangers. Herewith the appliance can be switched off when the cartridge is not functioning anymore, thus forcing a user to replace the cartridge, or to regenerate the ion exchangers before hard scale blocking of the appliance.