The hydrodynamic method of heating the liquid
(57) Abstract:The method is designed for heating and hot water supply to household customers in process plants for the intensification of the processes of mixing, dispersing, heating and so on, the Method is achieved by increasing the abnormal heat generation due to the impact of hydrodynamic braking on a collision jets cavitating fluid flowing at high speed from the counter-directional coaxial nozzles. Additionally the conditions for the formation and growth of cavitation bubbles by providing a self-oscillating mode of the pressure fluid from surplus to shallow vacuum. Periodic change of fluid pressure in the volume of its inhibition is provided by periodic draining of the fluid from the heat source through a siphon whose performance exceeds the performance of the pump. Erosive effects of cavitation in the nozzle is reduced by providing a vortex fluid flow and displacement of cavitation bubbles from the wall zone in the axial braking jets, followed by the collapse of the bubbles and the formation of a shock wave occurs in the volume of liquid in the plane of the shock usaimage is to drive the pump, in the heat and increase the durability of the device. 1 C.p. f-crystals, 2 Il. The invention relates to a power system and can be used in heating systems and technological installations for heating the liquid, the intensification of mixing, etc.Known devices and methods hydrodynamic heating the liquid accompanying the cavitation process in the liquid, while the observed anomalous dissipation in the cavitating water, because thermal energy is significantly greater than the consumed electric. The coefficient of energy transformation reaches two or more (L. C. Larionov and others, "the Phenomenon of cavitation and the problem of generation of heat in liquids". Scientific and technical proceedings, vol. 3-4 "Explosives and pyrotechnics". Moscow. MOS OF THE RUSSIAN FEDERATION. 1996).The closest technical solution and the destination is "a Method of heat dissipation in the liquid," RF patent 2061195, CL 6 F 24 J 3/00. Effective heat in the liquid is provided by the intensification of the cavitation process of the formation of a gas cushion and a self-oscillating process changes its volume and pressure of fluid. The disadvantage of this method is the complexity of the regulatory process, requiring primeste due to the destruction of her cavitation erosion.The task of the invention is to improve the efficiency and reliability of the hydrodynamic cavitation generator.This object is achieved in a known way hydrodynamic heating the liquid by converting generated by the pump pressure in the dynamic pressure of fluid flow, with subsequent inhibition. However what is new is that the fluid speed in a narrowing counter installed coaxial nozzles and inhibit in the plane of the shock of contact of the opposing jets. Divert the liquid through the siphon, creating a self-oscillating mode of the periodic pressure changes in the fluid after its inhibition from surplus to shallow vacuum. Education additional cavitation bubbles is achieved by the fact that the nozzles organize vortex fluid flow.The removal of the shock deceleration in the volume of liquid and the implementation of counter interaction of the jets significantly reduces cavitation destruction of structural elements of the heat source, increasing the reliability and durability of its operation.In Fig. 1 shows a diagram of the device for implementing the method of hydrodynamic heating the liquid.economic heating the liquid, presented on Fig.1, includes a heat source consisting of a body 1, a pipe 2 boards with nozzles 3, siphon with 4 suction inlet 5, pump 6, cogeneration boiler 7.The hydrodynamic method of heating the liquid is as follows: the fluid for heating the water pump 6 two streams fed into the housing 1 of the heat generator, nozzles 3, placed on the tube plate 2, there is an acceleration of the fluid with a decrease in pressure to a value slightly below the saturated vapor pressure at a given temperature of the liquid in the nozzle. The output of the multi-jet nozzles of the fluid flow percussive interaction coaxial counter-jets in the volume of liquid to the deceleration of the flow, providing a high speed of collapse of the bubbles. To ensure the effective formation of cavitation bubbles and their growth is provided by the creation of a self-oscillatory mode of change of pressure in the fluid periodic draining of fluid from the body 1 of the heat generator through a siphon 4, the performance of which exceeds the capacity of the pump. The frequency of periodic oscillations is set by the value of the distance cutoff intake pipe 5 of the siphon 4 from the top of the housing 1. So, aprimo fill increased frequency of discharge of liquid from teplogeneratora through the siphon 4 in water / water heat boiler 7.To reduce the erosive effects of cavitation on the internal cavity of the nozzle, the nozzles can be arranged vortex fluid flow to move the cavitation bubbles from parietal area nozzle axially.Thus is the way of the hydrodynamic heating the liquid with a conversion ratio of energy expended to pump heat source in excess of 100%, and achieved the durability of structural elements of the heat generator. 1. The hydrodynamic method of heating the liquid by converting generated by the pump pressure in the dynamic pressure of fluid flow, with subsequent inhibition, characterized in that the fluid speed in a narrowing counter installed coaxial nozzles and inhibit in the plane of the shock of contact of the opposing jets, divert fluid through the siphon, creating a self-oscillating mode of the periodic pressure changes in the fluid after its inhibition.2. The method according to p. 1, characterized in that the nozzles organize vortex fluid flow.
FIELD: low-power engineering, applicable as a component of windmills for production of heated water in houses not provided with centralized hot water supply.
SUBSTANCE: the friction heater has a tank with heated liquid, fixed and rotary disks coupled to the drive shaft for joint axial motion, and a propeller with the working force in the direction of the disks are installed in the tank. The novelty in the offered heater is the installation of additional fixed and rotary disks, the propeller is fastened on the drive shaft, and each of the rotary disks is installed between two fixed disks, and a float located above the propeller for rotation relative to the drive shaft and for axial motion on the latter.
EFFECT: enhanced efficiency of heater operation at the same rotary speed of the drive shaft.
FIELD: cavitation and vortex heat generators; heating liquids in various hydraulic systems; activation of mixing, dispersion and chemical interaction processes.
SUBSTANCE: proposed hydrodynamic heat generator is provided with liquid accelerator made in form of bladed impeller at guaranteed small clearance; it is mounted in circular bush provided with tangential passages located over periphery and used for connecting the peripheral surface of impeller with vortex cylindrical chambers found in bush through longitudinal slots in their lateral surfaces. Mounted at outlet of cylindrical vortex chambers are accelerating packings extending to braking chamber where cavity resonators are arranged. Bladed impellers may be of different types: open or closed-type centrifugal impellers at angle more than 90 deg. and centrifugal vortex impellers; vortex and braking chambers may be also made in different versions.
EFFECT: low losses of energy; enhanced stability of cavities; enhanced efficiency.
15 cl, 5 dwg
FIELD: heat power engineering.
SUBSTANCE: heating device comprises generator of heat energy and system for supplying heat to a consumer, which are interconnected through the supplying and discharging pipelines forming a closed contour. The contour has a net pump and at least one recirculation pipeline which receives at least one member provided with a converging pipe, diverging pipe, and one ring groove made between the diverging and converging pipes. The method of operation of the heating device comprises pumping the heat-transfer agent in the contour comprising at least one member with converging and diverging pipes. The heat-transfer agent is pumped under pressure which excludes the onset of cavitation in the heat-transfer agent flow.
EFFECT: enhanced efficiency.
16 cl, 7 dwg
FIELD: heat-power engineering; heating systems; water heating systems, public services, agricultural sector and transport facilities.
SUBSTANCE: steam from electric steam generator is delivered to jet apparatus nozzle where it is mixed with cold liquid flow for forming two-phase flow at acceleration to supersonic velocity. At mixing chamber outlet, this two-phase flow is decelerated for forming shock wave and converting the flow into liquid flow after shock wave. Then, flow is divided and one part is directed to heat exchanger of vortex tube where it is heated and directed for replenishment of electric steam generator. Other part is directed to nozzle apparatus where it is accelerated to supersonic velocity for forming two-phase flow, after which it is decelerated for converting it into liquid flow saturated with micro-bubble component. Nozzle apparatus outlet is connected with swirler inlet where vortex flow is formed; from swirler, flow is directed to vortex tube where heat is released and flow is divided into hot and cold components. From vortex tube, flow is directed to heat exchanger for transfer of heat to second loop; cooled liquid flow is directed to ejector inlet.
EFFECT: enhanced efficiency of plant.
FIELD: power engineering.
SUBSTANCE: device comprises high-pressure pump, hydraulic motor, and safety device which are arranged in the tank under the level of fluid. The delivery space of the high-pressure pump is connected with the supplying passage of the hydraulic motor through the high-pressure pipeline which is made of a cylindrical coil whose longitudinal axis is coaxial to the longitudinal axes of the housing, diffuser of the resonance vibrations , and ring made of a trancated cone. The discharging passage of the hydraulic motor is connected through the a pipeline with the sprayer whose longitudinal axis is coaxial to the axes of the deflector and head, longitudinal axis of the diffuser, longitudinal axis of the ring, and longitudinal axis of the magnetostriction emitter.
EFFECT: enhanced efficiency.
FIELD: heat power engineering.
SUBSTANCE: device for heating water comprises heat generator of pump type, which consists of housing that have cylindrical section and receives at least one member for acceleration of fluid flow made of working wheel composed of two disks which allow the working wheel to be set in rotation and disk made of a flat ring secured inside the cylindrical section of the housing in the zone of rotation of working wheel coaxially to it, one member for decelerating fluid flow made of a conical straightener, and heat exchange system connected with the delivery branch pipe and the pump. The disks of the working wheel define nozzles arranged closer to its face. The working wheel and unmovable disk define space of variable cross-section for sucking heated fluid through the nozzles and supplying it to consumers. According to a particular version, the working wheel can be mounted for permitting adjusting the spaces between its sides and lids at the inlet and outlet of the heat generator.
EFFECT: enhanced efficiency.
FIELD: heat production by means other than fuel combustion for premises water heating systems.
SUBSTANCE: proposed cavitation-type rotary heat-generator has housing provided with heated-liquid inlet and outlet and cylindrical surface carrying two coaxial rings of which one is fixed in position relative to housing and other ring is set in rotary motion by drive shaft disposed coaxially with rings. The latter are provided with radial holes disposed in plane perpendicular to axis of revolution. External coaxial ring is revolving and internal one is fixed in position relative to housing, clearance of 0.5 to 3 mm being provided between external revolving ring and internal cylindrical surface of housing. Steel disk is turned onto threaded end of drive shaft and external revolving ring is turned onto its rim. Drive shaft has spider with steel spokes tightened by means of claw nuts installed in depressions of external revolving ring. Threaded end of drive shaft mounts metal head with rimmed textolite disk attached thereto; this rimmed disk carries external revolving ring. Diameter of holes in internal fixed ring is larger by 1.5 - 3 times that that of holes in external revolving ring. Hole number in external revolving ring is other than that in internal fixed one.
EFFECT: augmented cavitation processes occurring during rotor revolution which enhances heating efficiency.
6 cl, 5 dwg
FIELD: heat-power engineering; generation of heat in the course of combustion; degassing liquid in the course of heating.
SUBSTANCE: proposed heat generator includes cyclone-type jet apparatus mounted vertically and provided with inlet branch pipe located in upper part and outlet branch pipe located in lower portion; it is also provided with expansion reservoir mounted above jet apparatus; upper cavity of this jet apparatus is communicated with expansion reservoir.
EFFECT: enhanced efficiency of degassing liquid; enhanced corrosion resistance; increased flow rate of liquid; reduced noise of pump.
2 cl, 1 dwg
FIELD: power engineering; use of geothermal heat in units using water from external sources.
SUBSTANCE: proposed plant includes vertical delivery well-bore running to earth's crust and vertical outlet well-bore located at some distance from delivery well-bore; provision is made for evacuation of vapor from this well-bore; plant is also provided with horizontal well-bore for connection of two vertical well-bores and at least one section of horizontal well-bore located in hot rock; all said well-bores are provided with casing pipes to exclude contact of liquid flowing through well-bores with soil or underground water; water obtained after condensation of vapor from outlet well-bore is pumped to delivery well-bore and is used repeatedly. Besides that, horizontal well-bore may be entirely located in rock; delivery and outlet well-bores enter hot rock; plant is provided with devices for delivery of water from delivery well-bore to horizontal well-bore. Water admitting to rock is not contaminated in such plant and may be used repeatedly.
EFFECT: enhanced efficiency.
4 cl, 2 dwg
FIELD: chemical and oil industry.
SUBSTANCE: method comprises supplying methane-containing gas to the cavitation liquid (water), bringing the gas into contact with the cavitation liquid to produce exothermic reactions, withdrawing heat, and removing oxygen-organic compositions, highest hydrocarbons, and unreacted gases from the cooled liquid, and rising pressure of the purified liquid. The reaction between the methane-containing gas and cavitation liquid is carried out in the presence of catalyzers that contain carbides, nitrides, borides and oxides of metals. The unreacted gases are supplied to the methane-containing gas.
EFFECT: enhanced efficiency.