Spray nozzle for overheated liquid
AssigneeThermokin
InventorJoseph Haiun
Life of this patent
Estimating the term…
Abstract
The invention relates to a device allowing an overheated liquid to be sprayed in very fine droplets at a very high speed, comprised of a nozzle body (1) followed by a mixer head and several injectors (16) opening onto a divergent and speed attainment nozzle (5). The invention also relates to fittings designed to adjust the exit section of the nozzle by adding a profiled core (11) that may slide on the axis of the divergent nozzle (5) and allowing, depending on its position, the exit section of the nozzle to be adjusted to maintain a maximum ejection speed of sprayed droplets. The device is essentially designed for chemical and energy industries.
Claims17
-13. (canceled)
A device designed to spray an overheated liquid in the form of very fine droplets at a very high speed, the overheated liquid relates to a liquid at a temperature To and to a pressure Po greater than the saturated vapor pressure Ps corresponding to To, the vapor pressure Ps itself being greater than the pressure P1 of the gaseous medium in which the liquid is sprayed, comprising a nozzle body fixed on a support allowing the supply of overheated liquid, the nozzle body comprising a conduit where the overheated liquid circulates, followed by one or more convergent heads and by one or more injectors where the overheated liquid attains speed to open onto a divergent and speed attainment nozzle where the liquid jet partially evaporates and instantaneously explodes under the effect of the pressure difference between the liquid and the ambient medium of the nozzle, to form a mixture of fine droplets and vapor, the generatrix of the divergent nozzle presenting a discontinuity, that is an angle, at its intersection with that of the injectors, and the exit section of this nozzle is sized so that the mixture is ejected from the nozzle at the pressure P1 of the external medium at the maximum ejection speed.
A device designed to spray an overheated liquid in the form of very fine droplets at a very high speed, the overheated liquid relates to a liquid at a temperature To and to a pressure Po greater than the saturated vapor pressure Ps corresponding to To, the vapor pressure Ps itself being greater than the pressure P1 of the gaseous medium in which the liquid is sprayed, wherein a nozzle body fixed on a support allowing the supply of overheated liquid, the nozzle body comprising a conduit where the overheated liquid circulates, followed by a convergent head and an annular injector passage section where the overheated liquid attains speed to open into a divergent and speed attainment nozzle where the liquid jet partially evaporates and instantaneously explodes under the effect of the pressure difference between the liquid and the ambient medium of the nozzle to form a mixture of fine droplets and vapor;
- the generatrix of the divergent nozzle presenting a discontinuity, that is an angle, at its intersection with that of the annular injector, and the exit section of this nozzle is sized so that the mixture is ejected from the nozzle at the pressure P1 of the external medium at the maximum ejection speed.
A device designed to spray an overheated liquid in the form of very fine droplets at a very high speed, and allowing, for the same spray nozzle, the flow, pressure Po or temperature To of the overheated liquid upon entry to be modified as required, as well as the pressure P1 of the gaseous medium in which the liquid is sprayed, while maintaining a maximum ejection speed of sprayed droplets exiting the device, the overheated liquid being a liquid at a temperature To and a pressure Po greater than the saturated vapor pressure Ps corresponding to To, the vapor pressure Ps itself being greater than the pressure P1 of the gaseous medium in which the liquid is sprayed, comprising:
- a nozzle body fixed on a support allowing the supply of overheated liquid, the nozzle body comprising a conduit where the overheated liquid circulates, followed by one or more convergent heads and by one or more injectors where the overheated liquid attains speed to open into a divergent and speed attainment nozzle where the liquid jet partially evaporates and instantaneously explodes under the effect of the pressure difference between the liquid and the nozzle to form a mixture of fine droplets and vapor, a profiled core housed in the divergent nozzle, that may slide on the axis of this nozzle, and allowing, according to its position, the exit section of this nozzle to be adjusted, the continuous and monotonic profiles of the generatrixes of the divergent nozzle and of the core allowing an increasing passage section to be maintained between the nozzle and the core along the axis of the nozzle, whatever the position of the core, the generatrix of the divergent nozzle presenting a discontinuity, that is an angle, at its intersection with that of the injectors, and a mechanism allowing the core to be supported and its relative position with relation to the nozzle to be adjusted from the outside.
Dependencies are inferred from the claim text.