A spraying heat preservation vapor supplying device comprises: a heat preservation boiler having an inner chamber, an outer chamber surrounding the inner chamber and a compartment layer separating the inner chamber from the outer chamber; a high heat capacity material filled in the outer chamber; a heater connected to the heat preservation boiler and heating the high heat capacity material, heat of the high heat capacity material being transferred to the inner chamber through the compartment layer; a supplier tube having a first end disposed in the inner chamber; a liquid source connected to a second end of the supplier tube and supplying a liquid to the inner chamber through the supplier tube to absorb heat of the inner chamber so that a vapor is generated; and a vapor outlet connected to the inner chamber and outputting the vapor. A generator apparatus using the vapor supplying device is also provided.

Apparatus for generating steam is disclosed. It comprises a water inlet (19), an evaporation surface (24), and a heater (26) disposed adjacent to the evaporation surface to heat the evaporation surface. The water inlet (19) is positioned relative to the evaporation surface (24) so that water is fed onto the evaporation surface from the inlet (19) and forms a film on the evaporation surface such that said film is evaporated from the evaporation surface (24). The apparatus also has a scale collection region (23). The evaporation surface (24) and the scale collection region (23) are configured such that the scale collection region (23) is positioned below the evaporation surface (24) during use of the apparatus so that scale dislodged from the evaporation surface (24) and which falls away from the evaporation surface (24), drops into the scale collection region (23).

There is provided a vapor generator including: a circuit to carry a DC current from an energy device; a wire mesh heating element to receive the DC current; and a sprayer to direct a fine spray of a liquid at the wire mesh heating element to vaporize the liquid, wherein a ratio of a resistance of the wire mesh heating element to a radiative black body area of the wire mesh heating element is less than 2 ohms/m.sup.2.

A water tube is adapted for use in a steamer. The steamer has a steam chamber and a heating plate that is disposed under the steam chamber. The water tube includes a tubular main body, a dividing body, and a plurality of ribs. The main body defines a channel extending in a flowing direction. The channel has an inlet portion, and an outlet portion that is opposite to and disposed downstream of the inlet portion, and that is adapted to extend into the steam chamber. The dividing body is inserted into the outlet portion of the channel. The ribs extend from the dividing body to the main body, and cooperate with the dividing body to divide the outlet portion of the channel into a plurality of outlet holes.

The invention relates to a device (1) for generating steam. The device (1) comprises a first plate (2) being inclined at a positive first angle (AO) compared to the horizontal direction (H) to define a first upper end (2a) and a first lower end (2b), a heating element (3) to heat the first plate (2) to a predetermined temperature being at least above water evaporation temperature, a water inlet arrangement (4) for dispensing water onto the first plate (2), a second plate (5) being inclined at a negative second angle (BO) compared to the horizontal direction (H) to define a second upper end (5a) and a second lower end (5b), the second upper end (5a) adjoining the first lower end (2b), and a container (6) extending at least below said first lower end (2b), said container (6) being arranged for collecting scale flakes falling from the first plate (2). This solution allows creating a larger volume for the collection of scale, thus increasing the operating life of the device (1).

An apparatus and method for the instant generation of superheated steam at normal atmospheric pressure are presented. Such an apparatus includes a water source, a means to convert the water to a mist or atomized droplets and a means to superheat the mist for application onto surfaces and objects. The apparatus and method are based upon the unique properties and behavior of misted water when it comes into contact with a heated surface, such behavior and properties resulting in the efficient and expansive release of energy and superheated steam. Such an apparatus can produce this steam at one atmosphere without the need of a boiler or other required high pressure fixtures or piping.

A device for converting a liquid into vapor, having an evaporation surface, a liquid inlet, a heater for heating the evaporation surface, a flow controller, a control unit configured to control a liquid flow rate injected into the liquid inlet, a chamber containing the evaporation surface, and a temperature sensor arranged on the evaporation surface. The control unit is configured to control a heating power of the heater according to a flow rate and to a temperature measured by the temperature sensor according to a predetermined control law. The predetermined control law varies, for each flow rate, non-linearly and inversely proportionally to the difference between a reference temperature of the chamber and the measured temperature.

A steam heating apparatus, including a housing, a heater, a water inlet, and a steam outlet. The heater includes a base and a heating body vertically extending down from the base. The heating body includes a water inlet channel, a steam outlet channel, and heating pipes. The water inlet channel and the steam outlet channel are located between a pair of vertical heating pipes among the heating pipes. One end of the water inlet channel is communicated with the water inlet provided at one end of the heater, and the other end of the water inlet channel is opened to allow steam to flow out. The steam heating apparatus can fully utilize the heat of the heater, and the steam conversion efficiency and quality are higher. Meanwhile, the problem of blocking is prevented, and the performance of the heating apparatus is improved.

The invention relates to the field of devices for artificial fog generation for use in security systems. A fog generator comprises an evaporator with an electrical heating element, a reservoir for a liquid to be evaporated, a pump and a programmable electronic control unit. A novel feature is that the electrical heating element is a coil winded by an additional winding, and a silica wrapping is arranged around rounds of the coil. To supply the liquid to be evaporated from the reservoir through the pump and to the evaporator, the device comprises: tubular connections, an additional reservoir, a general line, a needle-like tube having slots. The programmable electronic control unit comprises a microcontroller, transistor modules and units, sensors connected to other device elements. The fog generator enables to increase evaporation area, speed; to avoid the evaporator's excessive energy consumption in a standby mode; to reduce device weight and sizes.

A germicidal heating apparatus comprising a water supply part for supplying water, an superheated vapor generation part for generating superheated vapor by using the water supplied from the water supply part, and a blower for blowing the superheated vapor generated by the superheated vapor generation part through a discharge opening, characterized in that the superheated vapor generation part includes an annular vessel for receiving the water from the water supply part, and a spiral sheath heater arranged on the whole inside peripheral surface of the annular vessel, the upper end of the inside wall of the annular vessel being bent closely contacting the outside wall so as both to prevent leakage of the water contained in the annular vessel and to discharge the vapor generated by the heat of the sheath heater.