The heat source for heating liquids (options)
The invention relates to the field of power engineering and can be used for heating and hot water supply, and can also be used for heating viscous liquids when they are pumped through pipelines. The heat source includes located in the housing, at least one means for the acceleration of the fluid and at least one means for braking the movement of the liquid, made in the form of a paddle wheel. One impeller mounted for rotation under the action of the actuator is aligned with the other set still with the formation of the gap between the blades of the blade wheels. According to the first embodiment in the grooves between the blades of the stationary impeller installed partition with the possibility of its displacement along the height of the blade. According to the second embodiment of the hub of the rotary vane wheel is made so that the distance between its end and the end of the impeller is equal to 1/4 of the height of the blade. The technical result consists in increasing the efficiency, stability of the process of heating liquids, as well as increasing efficiency and capacity factor of the drive. 3 Il.From the Oia buildings, buildings, vehicles, in particular during emergency situations caused by failures in systems of Central heating and hot water, the invention can also be used for heating viscous liquids when they are pumped through pipelines and to provide other economic needs associated with hot liquid.A device for converting mechanical energy into thermal energy due to changes in physico-mechanical parameters of the working environment, such as pressure and volume (see USSR author's certificate No. 458591, F 25 B 29/00, 1972), which includes the body in the form of a spherical vessel filled with water, placed in it by the heat exchanger, pump drive, providing compression of the working environment inside the supply and return piping, isolating valves, and heat customer.The main disadvantage of the described analog is high working pressure in the case, up to 100 MPa, which complicates the design and impairs safe operation.The closest analogue (prototype) is the heat source described in the patent of Russian Federation №2045715, F 25 B 29/00, 1995, and includes a housing with cilindro pipe, coupled with cyclone mounted on one end of the cylindrical part of the housing. The opposite end of the cylindrical part of the housing has a bottom with an outlet that communicates with the outlet pipe of the casing. Inside the cylindrical part of the housing of a brake device with radial ribs. When this outlet is connected via a bypass pipe with a cyclone, and in the area of their connection installed additional braking device. When the pump fluid under pressure 0.4-0.6 MPa is fed into the injection nozzle, accelerating it, twisted into a spiral cyclone and braked on the walls of the cylindrical part of the body and the edges of the braking device. As a result of changes in pressure and flow velocity of the liquid is heated and enters the heat exchangers.The main disadvantage of the prototype is its unstable heating capacity (i.e. the amount of thermal energy of the heated fluid per unit time), which is determined by the magnitude of the useful mechanical power on the shaft of the motor. Reject the heat output can reach 1.5-2 times as in the direction of its increase, and in the direction of humanistische parameters of high-speed fluid flow in the channel of the heat generator. These parameters are reproduced in the result of the interaction of three uncontrolled elements of design: channel flow, the pump and motor. In these conditions, even a small deviation of the operating characteristics lead to significant deviations of the value of the loading torque and heat output. In the case of increasing the heat output of the electric motor is overload, which is unacceptable because of the possibility of overheating of windings and failure. In the case of reducing the heat output of the electric motor works with the load and the generator does not produce the required amount of heat. As when underload motor and overload to the loading point, different from the nominal, reduced coefficient of performance (COP) of the motor and the load factor.Thus, the problem to which the present invention is directed, is to ensure a stable and predictable flow of fluid in the device. The technical result achieved by the invention is in improving the efficiency, stability and controllability of the process of heating liquids, as well as the increase To the s to the above technical result, in all cases, covered amount requested legal protection, can be characterized by the following set of essential features.The heat source includes located in the housing, at least one means for the acceleration of the fluid and at least one means for braking the movement of the liquid, made in the form of a vane wheel, and means for fluid supply. Impellers are located coaxially with the formation of a gap between them. One impeller mounted for rotation under the action of the actuator. Another impeller fixed. On it in the groove between the blades installed partition with the possibility of its displacement along the height of the blade.In addition, in the particular case of the invention, the blades on the first and/or second blade wheel can be performed on the end surface of the blade element at an angle to its radius.In addition, in the particular case of the invention, the first impeller and/or the second impeller can be installed with adjustable gap between their end surfaces.In addition, in the particular case of the invention, the device may include may be a screw element.In the second embodiment, the heat source includes located in the housing, at least one means for the acceleration of the fluid and at least one means for braking the movement of the liquid, made in the form of a paddle wheel. Impellers are located coaxially with the formation of a gap between them. One impeller mounted for rotation under the action of the actuator. Another impeller fixed. The hub of the impeller, which is mounted for rotation under the action of the actuator is performed so that the distance between its end and the end of the impeller is equal to 1/4 the height of his blade.In fact, the device can be used impeller of the hydrodynamic coupling, similar to that used for transmission of torque between the two shafts (Gavrilenko, A. B., Semichastnov I. F. Hydrodynamic transmission: Design, manufacture and operation. - M.: Mashinostroenie, 1980). In conventional hydrodynamic coupling coaxially and turbine wheels rotate with some slippage relative to each other. In this regard, the working fluid is heated, however, the quantity of generated heat is small compared to ve the e jet) allows you to turn all the mechanical energy of the motor into thermal energy of the heated fluid.The possibility of carrying out the invention described above, sets of signs, and the possibility of implementation of the assignments of the invention can be confirmed by the description of a design of a heat generator to heat the fluid in accordance with the claimed invention. Description construction is illustrated graphics, which depict the following:Fig.1 is a schematic diagram of a heat generator (option 1).Fig.2 is a schematic diagram of a heat generator (option 2).Fig.3 is a diagram of the formation of the blades.In the first embodiment, the heater 1 for heating liquids includes a housing 2, which represents an insulated tank with a liquid, separated by a partition 3 drain 4 and outlet 5 compartments. In spill Bay 4 performed the inlet 6, and the discharge outlet 7. The holes are connected with respectively the drain, and discharge nozzles with at least one heat exchanger (not shown). In the housing 2 is posted means for acceleration and deceleration of the fluid that is made in the form of paddle wheels 8 and 9 and represents two wheels hydrodynamic transmission with blades 10. Lapoinniemi transmission) and impeller 9 (pump wheel of the hydrodynamic transmission) ribs with grooves 11 between them. Between the blades of the impeller 9 is installed partition 15. Moreover, this partition is installed with the possibility of its displacement along the height of the groove. Thus the longitudinal axis O1O2vanes (fins) are angled==0to the radius of the corresponding wheel, but may be located at an angle other than 0including can be designed so that the blades 10 of the impeller 8 and the vane wheel 9 will be directed towards each other. Vane wheel 9 is fixedly mounted in the housing 2 and the impeller 8 is installed coaxially him on the shaft 12 of the drive motor 13 with the possibility of its rotation. In the particular case of impeller installed with adjustable gap And between the ends of the vane wheel by moving vane wheel 8 and/or 9 along the shaft 12. On the shaft 12 mounted means for supplying fluid 14, which is made in the form of a screw placed in the inner hole of the blade element 8 with the formation of the slit for the passage of fluid from the drain cover 4 of the housing into the cavity From between the paddle wheels 8 and 9. The diameter d of a circle, bounding photoshoplena fluid from the screw 14 through the gap In the cavity From between the blade element and the impeller.In the second embodiment, the heater 1 for heating liquids includes a housing 2, which represents an insulated tank with a liquid, separated by a partition 3 drain 4 and outlet 5 compartments. In spill Bay 4 performed the inlet 6, and the discharge outlet 7. The holes are connected with respectively the drain, and discharge nozzles with at least one heat exchanger (not shown). In the housing 2 is posted means for acceleration and deceleration of the fluid that is made in the form of paddle wheels 8 and 9 and represents two wheels hydrodynamic transmission with blades 10. The blades are made on the respective ends of the impeller 8 (jet wheel of the hydrodynamic transmission) and impeller 9 (pump wheel of the hydrodynamic transmission) ribs 11 with grooves between them. Thus the longitudinal axis O1About2vanes (fins) 10 are angled==0to the radius of the corresponding wheel, but may be located at an angle other than 0including can be designed so that the blades 10 lastlogin in the housing 2, and vane wheel 8 mounted coaxially him on the shaft 12 of the drive motor 13 with the possibility of its rotation. In the particular case of the implementation of the impeller is installed with adjustable gap And between the ends of the vane wheel by moving impeller along the shaft 12. The distance between the end surface of the hub impeller 8 and its front surface is equal to 1/4 of the height of the blades of the wheel 8.The device operates as follows:When switching on the electric motor 13, the fluid from the heat exchanger flows into the drain compartment 4 of the housing through the opening 6. In the first version of the compartment 4, the liquid is fed by a screw 14 in the grooves of the vane wheel and accelerating under the action of centrifugal force, moves from the center to the periphery, where the flow is twisted and falling into the grooves of the blade element is braked, moving to the center, and then re-enters the grooves of the vane wheel. As a result, the liquid heats up and through the gap And under pressure enters the pressure compartment 5 of the casing and then through the opening 7 and outlet pipe to the heat exchangers.The fluid flow through the flow channel of the heat generator and the differential pressure between the pressure and drain the compartments is I, spent the rotation of the impeller 8, almost completely converted into thermal energy of the heated fluid. Therefore, the heat output of the unit can be determined by the work load torque impeller on the shaft speed. The value of the loading torque is stable, because it depends mainly on the active diameter of the impeller and can be calculated by the well-known formulas for the hydrodynamic transmission. The actual value of the load torque can be adjusted by moving the partition between the blades along the blades. This allows you to use the same heat source with drive motors of different power.In addition, in the limited range of the actual value of the loading torque can be adjusted by changing the gap And bring it up to the nominal torque of the motor. In the second embodiment, the screw is missing, however, shortened hub impeller allows the flow of water into the space between the impeller and the impeller element. Because there is no special tool for the fluid, it simplifies the design halogene the angling of the motor rated torque, that ensures stable heat output corresponding to the rated power of the motor, with maximum efficiency and ensures its versatility.The above-described variants of design of a heat generator to heat the fluid in accordance with the claimed invention, demonstrate the possibility of realization of the purposes of the invention and achieve the above technical result, but it does not exhaust all possibilities of carrying out the invention, is characterized by a set of features described in the claims.
Claims1. The heat source includes located in the housing, at least one means for the acceleration of the fluid and at least one means for braking the movement of the liquid, made in the form of a paddle wheel located coaxially with the formation of the gap between their end surfaces of the blades, and means for feeding fluid into the cavity between the paddle wheels, with the first impeller mounted for rotation under the action of the actuator, wherein the second impeller is stationary mounted in the housing, and in pazarlar under item 1, characterized in that the blades on the first and/or second vane wheel is made at an angle to its radius.3. Heat under item 1 or 2, characterized in that the first impeller and/or the second impeller mounted for regulating the gap between their end surfaces.4. Heat generator according to any of paragraphs.1-3, characterized in that the means for the fluid is a screw element.5. The heat source includes located in the housing, at least one means for the acceleration of the fluid and at least one means for braking the movement of the liquid, made in the form of a paddle wheel located coaxially with the formation of the gap between their end surfaces with blades, with the first impeller mounted for rotation under the action of the actuator, wherein the second impeller is stationary mounted in the housing and hub are made so that the distance from its end surface to the end surface of the specified impeller is equal to 1/4 of the height of the blades.6. Heat generator according to p. 5, characterized in that the blades on the first and/or second vane wheel is made at an angle to its glad the forest set with adjustable gap between their end surfaces.
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.