Abstract:
The present invention relates to a method for converting the energy of a liquid flow into thermal energy, wherein said method comprises creating an ultrasonic flow mode in a dual-phase liquid flow. The dual-phase flow is then slowed down in order to generate a pressure jump therein and further introduced into a liquid flow comprising microscopic gaseous vapour bubbles, the liquid being heated during the jump-type conversion process of the flow. In a preferred embodiment, the equipment for realising this method comprises a steam boiler (22) which is in steam communication with a jet converter (23). The outlet of the jet converter is connected to the inlet of a heat-generating grid (25) as well as to the inlet of the steam boiler (22). The outlet of the heat-generating grid (25) is connected to the inlet of a heat-consuming device (26) that is in turn connected to the jet converter (23). The present invention may be used in autonomous equipment for heating premises.
Abstract:
A method for preparing emulsions consisting in feeding the steam at a speed of 500-800 m/sec, injecting into the steam liquid components to be emulgated and transporting the two-phase steam-liquid mixture at a supersonic speed. A device for implementing the method comprises a cylindrical casing (1), an aerosol chamber (2), a steam nozzle (4), a mixing chamber (9), the steam nozzle being executed as a Laval nozzle and mounted with the possibility of axial movement, so that an injection zone (5) is created between the end-face of the steam nozzle (4) and the internal surface of the aerosol chamber (2), whereas the mixing chamber (9) has a convergent section (10) facing the Laval nozzle and merging into a cylindrical section (11), behind which is located the divergent section (12).
Abstract:
The device is used in power engineering, ship-building, and machine-building industries as well as in transport for preparation of high-quality water-fuel emulsions. Objective of the invention is to reduce power consumption. The device for preparation of a water-fuel emulsion comprises a blending chamber 3, as well as a fuel nozzle 4 and a water nozzle 5 for supply of respective mediums in the chamber 3. A nozzle that ensures boiling of water is used as the water nozzle 5. The water nozzle 5 comprises inlet 6 and outlet 7 sections that are respectively convergent and divergent in the direction of the medium flow, between which the minimal cross-section S min of the nozzle is located. The generatrix of a fore part of the divergent section 7 of the nozzle 5 has a concave shape of the curve in relation to the axis of the nozzle 5, which curve goes smoothly into a convex curve in relation to the axis of the nozzle 5 in the critical cross-section S cr of the nozzle 5. The water nozzle 5 is located on a longitudinal axis 2 of the chamber 3 while the fuel nozzle 4 is located in line with the water nozzle 5 and is shaped as a ring enveloping an end part of the water nozzle 5.
Abstract:
A device for preparation of emulsions comprises a mixing chamber (1) provided with a nozzle (2) which is intended for feeding a working medium, is mounted on the side of the inlet opening (3) of the mixing chamber (1), and is oriented along the longitudinal axis (4) of the chamber (1) and coaxially to the latter, and also provided with nozzles (5) for feeding a medium to be injected. The device further comprises elements (6) for making vapour-liquid mixture which are located between the inlet opening (3) of the mixing chamber (1) and the nozzle (2) for feeding the working medium and which connect the outlet openings (7) of the nozzles (5) for feeding the medium to be injected to the inlet opening (3) of the mixing chamber (1).
Abstract:
A system for dosing and mixing liquid components of a mixture comprises two contours (30, 40) of circulation of the liquid components. The circulation contour (30) comprises, consecutively interconnected along the mixture path, a unit (2) for main mixing of the liquid components, a unit (3) for controlling the discharge of the liquid components and a pump (29) to the input of which is connected a recipient (25) for liquid components (27). The circulation contour (40) comprises, consecutively interconnected along the mixture path, a unit (1) for controlling the ratio between the liquid components of the mixture and the unit (2) for main mixing. A recipient (26) for liquid components (28) is connected to a pipe (36) connecting the output (10) of the unit (1) and an injecting input (14) of the unit (2).
Abstract:
The present invention pertains to the field of jet-generation techniques and essentially relates to a gas-liquid jet apparatus that comprises an active nozzle, a reception chamber and a mixing chamber. The outlet section of the active nozzle is larger than the minimal flow section of the mixing chamber. The inlet portion of the mixing chamber, in the area of the outlet portion of the active nozzle, narrows gradually and is defined by conical surfaces, while the outlet portion of the mixing chamber widens in the direction of the active medium flow. The active nozzle, the mixing chamber as well as the arrangement of the latter relative to said nozzle are realised according to predetermined dimensional ratios. It is thus possible to improve the operation stability of the jet apparatus.
Abstract:
A system for dosing and mixing liquid components comprises a unit (7) for preliminary mixing of the liquid components, a unit (11) for main mixing of the liquid components and a unit (15) for control of discharge of the liquid components, which consist of jet mixers-injectors whose mixing chambers (19, 25, 28) provide for a supersonic pressure drop. The main mixing unit (11) and the discharge control unit (15) are provided with two feed-back circuits (31, 32) so that two outputs (30, 29) of the unit (15) are connected, respectively, to the inputs (21, 24) of the unit (11). The feed-back circuits (31, 32) include dosing valves (33, 34) connected to the outputs (29, 30) of the unit (15) and connected in series to the feed-back circuits (35, 36) connected, in turn, to the inputs (24, 21) of the unit (11).