Steam treatment appliance and method for cleaning a steam treatment appliance

A steam treatment appliance, comprising:

• a steam treatment space;
• a fixed water connection;
• a receiving container fillable with fresh water via the fixed water connection and having a discharge opening;
• a steam generator arranged outside the steam treatment space and having a water inlet for fluidic connection to the discharge opening of the receiving container and a water outlet for fluidic connection to the receiving container;
• a pump;
• a cleaning product inlet for fluidic connection to the receiving container;
• a temporary waste water outlet;
• and
• a valve system switchable between a first switch position in which a closed liquid circuit is formed with at least the receiving container, the steam generator, and the pump while bypassing the steam treatment space, and a second switch position in which the liquid circuit is opened to connect the water outlet of the steam generator to the temporary waste water outlet,
• wherein the valve system includes a directional control valve configured to fluidically connect, in the first switch position, the water outlet of the steam generator to the receiving container and, in the second switch position, to connect the water outlet of the steam generator to the temporary waste water outlet and to cut off the fluidic connection to the receiving container,
• wherein the directional control valve is realized in the form of a drawer unit including a casing and a drawer with a filling tray, which can be pulled out of the casing and includes an outlet opening on a bottom side thereof, said casing including a stationary filling neck for fluidic connection to the water outlet of the steam generator, and a stationary outlet pipe that leads to the receiving container, wherein when the drawer is closed the filling tray is fillable via the filling neck with liquid discharged from the steam generator, and the outlet pipe is fluidically connected to the outlet opening of the filling tray, and when the drawer is open the filling tray is fillable via the filling neck with liquid discharged from the steam generator, and the outlet opening of the filling tray is arranged outside the casing of the drawer unit, said drawer being closed in the first switch position of the valve system and being open in the second switch position of the valve system.

A steam treatment appliance, comprising:

• a steam treatment space;
• a fixed water connection;
• a receiving container fillable with fresh water via the fixed water connection and having a discharge opening;
• a steam generator arranged outside the steam treatment space and having a water inlet for fluidic connection to the discharge opening of the receiving container and a water outlet for fluidic connection to the receiving container;
• a pump;
• a cleaning product inlet for fluidic connection to the receiving container;
• a temporary waste water outlet;
• a valve system switchable between a first switch position in which a closed liquid circuit is formed with at least the receiving container, the steam generator, and the pump while bypassing the steam treatment space, and a second switch position in which the liquid circuit is opened to connect the water outlet of the steam generator to the temporary waste water outlet;
• a siphon via which the discharge opening of the receiving container is connected to the water inlet of the steam generator;
• and
• a venturi tube which is disposed in a pipe between the water outlet of the steam generator and the waste water outlet and which includes a take-off pipe connected to the siphon.