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INVENTION
Patent of the Russian Federation RU2166155
HYDRODYNAMIC HYDROGENERATOR
The name of the inventor: Kirilenko VN; Brulev S.O.
The name of the patent owner: Limited Liability Company "INTERBIZNESPROEKT"
Address for correspondence:
Date of commencement of the patent: 1999.04.21
The invention is intended for use in power engineering as a source of heat supply, but also for hydrodynamic intensification of technological processes in disperse systems and cavitation sterilization of liquid media. The described heat generator achieves a stepwise cavitation of the processed liquid flow with its acceleration into conical tapering coaxial, counter-directed nozzles to a speed of 30-40 m / s, twisting of the jet and lowering the pressure in the outlet part of the nozzle below the vaporization pressure at the temperature of the liquid being treated, followed by a vortex Jet in the output diffuser nozzle and impact braking during their counter interaction. As a result of the interaction of the jets, the flow unfolds within 90 ° and, through a connecting tapering annular plane, is fed into the resonator, where the liquid flow passes additional sonication, is heated and delivered to the consumer. The device is characterized by low weight, compactness, high reliability due to the lack of moving parts, simplicity of manufacture.
DESCRIPTION OF THE INVENTION
The invention relates to heat power engineering for liquid heating, and for hydrodynamic intensification of technological processes in disperse systems and sterilization of liquid media.
The known hydrodynamic heat generator (patent RU 2054604 C1) contains a series of successively operating centrifugal pumps housed in one housing, which are hydrodynamic ultrasonic radiators operating on the principle of an ultrasonic siren. Ultrasound generators are coaxial mobile and fixed perforated rings. This heat generator generates heat, which exceeds the power consumption of the drive by several times. The disadvantage of the device is the complexity of manufacturing, high cost and increased cavitation erosion of the heat generator parts.
The closest technical solution to the proposed heat generator is a jet heat generator (RU 2096694). The heat generator contains a coaxially installed inlet nozzle and outlet nozzle, a mixing chamber for hot and cold flows, a toroidal resonator (heating chamber).
The disadvantage of this design is the low efficiency of converting the kinetic energy of the liquid jet into heat, Part of the flow of incoming liquid passes through, passes the resonant heating chamber, the other part, less than 50%, enters the heating chamber where, after heating, it mixes with the direct flow of the source water and flows to the consumer.
The aim of the proposed construction is to increase the coefficient of conversion of the mechanical energy of the flow of liquid into heat by the stepwise cavitation of the moving flow.
The aim is achieved by the fact that the hydrodynamic heat generator comprising the housing, the inlet nozzle, the outlet of the heated liquid, the brake chamber of the liquid jets and the resonance chamber connected by the annular opening is provided with an additional inlet nozzle and diffuser nozzles installed at the outlet of the inlet nozzles, the latter being mounted coaxially to meet To each other, the annular aperture is made in the form of a widening gap that converges at the interface with the resonant chamber, and the outlet of the heated liquid is connected to the resonance chamber.
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The figure shows a section of the proposed hydrodynamic heat generator comprising a housing 1 in which cavity chambers 4 are placed and brakes of jets 5 connected by cavity 9, inlet nozzles 2, expandable nozzles 3, swirlers 6 on outlet part of nozzle 2, sealing lip 7 with sharp edge And a drain channel of heated water 8. The heat generator works as follows. The liquid is supplied to the inlet nozzles 2 through the expansion nozzles 2 and through counterflow nozzles 3 by counter-coaxial jets at a speed of 30-40 m / s to the braking chamber of the jets 5. Due to the central impact when the jets meet, a hydraulic shock with a wave character with a maximum pressure amplitude for Of the above-mentioned discharge velocities from the nozzles of 300-450 kg / cm 2 , which ensures a high rate of collapse of the cavitation bubbles formed due to the reduction of the static pressure in the liquid to a value below the vaporization pressure at the cavitating liquid temperature. To exclude the erosive effect of cavitation on the nozzles in the outlet part, flow swirlers are installed that move the cavitation bubbles into the nozzle zone of the nozzle. |
In the interaction plane of the opposing jets in the deceleration chamber 5, they brake and rotate toward the resonant chamber 4. The liquid passes through the second stage of cavitation, entering the resonant chamber 4 through a tapered annular gap that passes at the junction with the cavity of resonator 4 into the expanding gap 9. The resonance Chamber 4 is the third stage of cavitation, where, due to the deflection of the jet, the sharp edge of the gasket 7 generates an autooscillatory process, the frequency of which is tuned to resonance by the natural frequency of the resonator by changing the diameter and head of the jet. Heated liquid through channel 8 is diverted to the consumer.
The device is small in weight, compact, simple in design, and lack of moving parts.
CLAIM
A hydrodynamic heat generator comprising a housing, an inlet nozzle, an outlet for the heated liquid, a brake chamber for liquid jets and a resonance chamber connected by an annular opening, characterized in that it is provided with an additional inlet nozzle and diffuser nozzles installed at the outlet of the inlet nozzles, the latter being mounted coaxially opposite to each other The annular aperture is made in the form of a widening gap that converges and converges at the interface with the resonant chamber, and the outlet of the heated liquid is connected to the resonance chamber.
print version
Date of publication 06.12.2006гг
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