Abstract:
A system comprising an evaporator (202); a water reservoir (206) in fluid communication with the evaporator; the water reservoir being located upstream of the evaporator; and a first steam drum in fluid communication with the evaporator; the first steam drum being located downstream of the evaporator; where the water reservoir is operative to supply feedwater to the evaporator while maintaining a predetermined water level in the first steam drum.
Abstract:
The invention relates to a household appliance (10) having a fillable steam boiler (20) including an interior space (46) surrounded by delimiting walls (22, 24, 26, 28, 30), wherein an inlet (40) for a liquid (74) is provided in at least one delimiting wall (22). The inlet (40) is arranged in relation to a sensor (50) for detecting a fill level in the steam boiler (20) such that a liquid stream (72) entering the steam boiler (20) from the inlet (40) initially strikes a coupling region (54) of the sensor (50) with the steam boiler (20) only if the inlet (40) releases liquid (74) into the interior space (46) of the steam boiler (20) before the liquid (74) is collected in the steam boiler (20).
Abstract:
An apparatus (100) for providing information concerning a condition of a vessel such as a steam drum (12) which segregates steam and liquid from one another includes a liquid contact assembly (102), a signal generator element (130), and a housing (112) and a conduit (114) for enclosing the signal generator element (130) in a substantially leak proof manner within the vessel space. The liquid contact assembly (102) is disposable at a first vessel location in the steam drum (12) and has a vibration component (108) operable to vibrate at natural frequencies which vary as a function of a predetermined characteristic of the liquid at the first vessel location and a support component (110) for supporting the water contact assembly (102) in contact with the liquid at the first vessel location. The signal generator element (130) generates a signal indicative of a natural frequency of the vibration component (108).
Abstract:
Die Erfindung betrifft eine Verdampfungsvorrichtung (20) mit einem Wasserbehälter (11) mit einer ersten Wasserzuführung (1) und einem Dampfauslass (12), wobei in dem Wasserbehälter (11) ein im Trockenbetrieb vor Überhitzung geschütztes Heizelement (7) und ein Widerstandsheizelement (6) angeordnet sind, wobei das Widerstandsheizelement (6) unterhalb eines ersten Wasserlevels und das im Trockenbetrieb vor Überhitzung geschützte Heizelement (7) oberhalb des ersten vorbestimmten Wasserlevels und unterhalb eines zweiten vorbestimmten Wasserlevels angeordnet ist, und der zweite vorbestimmte Wasserlevel oberhalb des ersten vorbestimmte Wasserlevels liegt.
Abstract:
The present invention relates to a steam generator and a method for controlling the water level thereof. In particular, the steam generator comprises: a vertical cylinder which has a fixed diameter; a heater which is wound tightly on the outer circumference of the vertical cylinder and heats the vertical cylinder; a water inlet port which is installed on the bottom of the vertical cylinder and supplies water supplied from a water tank to the bottom of the vertical cylinder; a steam outlet port which is installed on top of the vertical cylinder and discharges steam generated on the water surface inside the vertical cylinder to the outside; a temperature measuring unit which is installed to adhere closely to the outer circumference of the vertical cylinder and measures the temperature of the vertical cylinder; and a switch which controls the power supplied to the heater based on the temperature measured by the temperature measuring unit.
Abstract:
A method of controlling the operation of a pressurised steam boiler (50) heated by a burner (20), which includes the steps of a) monitoring the level of water in the boiler (50), b) monitoring the pressure of steam in the boiler (50), c) monitoring the firing rate of the burner (20), and d) controlling the flow rate of water into the boiler (50) having regard to the signals resulting from a) and b) and, at least for some signal conditions, also having regard to signals resulting from c). The level of water is detected by a pair of capacitance probe assemblies (58A and 58B).
Abstract:
An improved boiler water-level controller. According to one aspect of the present invention, a positive blowdown signal is presented to indicate to the operator that the alarm probe is in steam; performing blowdown until this indicator turns on helps ensure that the alarm probe is working properly. According to another aspect of the present invention, the controller uses a novel methodology of sensing water level using conductivity probes. An embodiment of this methodology uses the charging and discharging of a capacitor through a resistive value to sense the presence of water.