The present invention relates to a device (1) for generating steam. The device (1) comprises a plate (2) forming a surface, and a heating element (3) to heat the plate (2) to a predetermined temperature being at least above water evaporation temperature. The plate (2) is inclined at an angle compared to the horizontal direction to define an upper end and a lower end. The device (1) also comprises a water inlet arrangement (4) for dispensing water onto the plate (2) proximate the upper end, a control unit (11) to control the flow of water dispensed onto the plate (2), and a scale collection container (5) disposed adjacent to the plate (2). The control unit (11) is configured to control the flow of water dispensed onto the plate (2) and the temperature of the plate (2) so that substantially all the water dispensed onto the plate (2) evaporates before it reaches the lower end (15) of the plate (2). This invention allows an easy scale collection, thanks to the inclination angle of the plate's surface that causes the dislodged scale to travel down the plate's surface toward the lower end of the plate and, ultimately, into the container.

A spraying and re-heating vapor reactor includes: a heat preservation boiler; a vapor reaction boiler disposed in the heat preservation boiler; a re-heating conduit communicating the vapor reaction boiler with a device outside the heat preservation boiler, a high heat capacity material being accommodated within the heat preservation boiler, and surrounding the vapor reaction boiler and the re-heating conduit; a heater heating the high heat capacity material; a sprayer disposed in the vapor reaction boiler; and a liquid supplying tube communicating with the sprayer through structure walls of the heat preservation boiler and the vapor reaction boiler, and supplying an external liquid to the sprayer. The sprayer atomizes the external liquid into an atomized liquid absorbing thermal energy from the high heat capacity material and becomes a low-temperature vapor entering the re-heating conduit and being re-heated into a high-temperature vapor. A generator apparatus is also provided.

A spraying and re-heating vapor reactor includes: a heat preservation boiler; a vapor reaction boiler disposed in the heat preservation boiler; a re-heating conduit communicating the vapor reaction boiler with a device outside the heat preservation boiler, a high heat capacity material being accommodated within the heat preservation boiler, and surrounding the vapor reaction boiler and the re-heating conduit; a heater heating the high heat capacity material; a sprayer disposed in the vapor reaction boiler; and a liquid supplying tube communicating with the sprayer through structure walls of the heat preservation boiler and the vapor reaction boiler, and supplying an external liquid to the sprayer. The sprayer atomizes the external liquid into an atomized liquid absorbing thermal energy from the high heat capacity material and becomes a low-temperature vapor entering the re-heating conduit and being re-heated into a high-temperature vapor. A generator apparatus is also provided.

The present application relates to apparatus for generating steam. It comprises a water inlet, a evaporation surface, and a heater disposed adjacent to the evaporation surface to heat the evaporation surface to a predetermined temperature such that water fed onto the evaporation surface via the water inlet forms a film on the evaporation surface and is evaporated. The apparatus is configured so that water is fed to one or more regions of the evaporation surface, and the temperature of the water fed onto the evaporation surface is lower than the predetermined temperature, so that scale on the or each region of the evaporation surface to which water is fed cools at a different rate at which water on a remainder of the evaporation surface cools. This causes scale on the evaporation surface to break apart and be dislodged from the evaporation surface.

The present application relates to apparatus for generating steam. It comprises a water inlet (19), a evaporation surface (24), and a heater (26) disposed adjacent to the evaporation surface (24) to heat the evaporation surface (24) to a predetermined temperature such that water fed onto the evaporation surface (24) via the water inlet (19) forms a film on the evaporation surface (24) and is evaporated. The apparatus is configured so that water is fed to one or more regions of the evaporation surface (24), and the temperature of the water fed onto the evaporation surface (24) is lower than the predetermined temperature, so that scale on the or each region of the evaporation surface (24) to which water is fed cools at a different rate at which water on a remainder of the evaporation surface (24) cools. This causes scale on the evaporation surface (24) to break apart and be dislodged from the evaporation surface (24).

A water injection system injects water drops for conversion into steam into an oven in a more controllable manner than existing systems, and more evenly distributes the steam within the oven. The water drops are isolated in a defined area with a drip plate where scale may accumulate. The drip plate may be easily cleaned of scale or may be easily replaceable.

A water delivery apparatus (100) for use at a household appliance is provided. The water apparatus comprises an air-tight water storage unit (110) configured to store water, an air channel (120) configured to allow air to enter the water storage unit at a predetermined height level so as to regulate the water pressure in the water storage unit, and a water delivery tube (130) connected to a component of the household appliance at which water is utilized for performing a function of the household appliance.

Provided is a method of producing an ultrafine bubble-containing liquid containing ultrafine bubbles generated by causing film boiling in a liquid with a heat generation member, including: detaching a solid present at a liquid contact surface of the heat generation member in a form of a microscopic substance by using the film boiling; and generating ultrafine bubbles with the detached microscopic substance as a core.

A device for cleaning workpieces with a steam jet is proposed, with a special steam generator in which the steam is generated in a hollow cylindrical core, whose outer side is heated and onto whose inner side the water to be vaporized is sprayed by means of a nozzle. The steam generator has a supplementary heating device with a heatable body having a cavity through which steam generated upstream can flow for post-heating it, in order to generate dry steam for dry steam cleaning. An automated cleaning system with this steam generator is also proposed. The device can be adapted flexibly to the requirements of automated synchronized production and requires, in particular, less energy and floor space. The invention can be used, among other things, in industrial cleaning in manufacturing systems engineering, in particular in the production of automotive parts.

A water delivery apparatus (100) for use at a household appliance is provided. The water apparatus comprises an air-tight water storage unit (110) configured to store water, an air channel (120) configured to allow air to enter the water storage unit at a predetermined height level so as to regulate the water pressure in the water storage unit, and a water delivery tube (130) connected to a component of the household appliance at which water is utilized for performing a function of the household appliance.