Fluid heating device
SUBSTANCE: invention relates to power engineering and can be used for heating water in housing and utilities sector and in agriculture. Essence of the invention consists in the fact that the acceleration bush of a heat generator is made as a set of concentrically embedded fixed bushes with radial gaps, the bush is installed in a water heating device comprising an operating network pump, feeding and return pipelines with shutoff valves providing for interaction of the heat exchanger with the heat generator which includes at least one casing fitted by a cylindrical part made as a vortex tube with a braking unit being set at the base of the casing and its other side being connected to the end face side of a fluid accelerator which is made as a volute connected to the pump and fitted by the acceleration bush set coaxially to the vortex tube axis line and connected to the discharge tube of the pump by a channel.
EFFECT: device arrangement will make it possible to increase fluid heating efficiency and reach stable performance.
12 cl, 8 dwg
The invention relates to a heat-cavitation type for heating liquids in hydraulic systems for various purposes, and can also be used as mixers for various liquids, dispersing, destroying the molecular bonds in complex fluids, changes in physical and mechanical properties of liquids.
A device for heating the liquid (patent RU №2045715, IPC F25B 29/00)containing a heat source consisting of a body having a cylindrical part, and the accelerator of the fluid made in the form of a cyclone, a pump connected to the heat source through the injection nozzle, and a heat exchange system connected to the outlet pipe of the heat source and to the pump. In the known device for heating the liquid in the cylindrical part of the building on the site adjacent to the outlet nozzle, is located braking device and the heat source has a bypass pipe connecting the cyclone with the outlet pipe.
The disadvantage of this technical solution is that the proposed device has a high hydraulic energy loss, poor acoustic conditions for wave processes and it is therefore not enough high efficiency (heating water).
This design assumes the excess of the diameter of the cochlea in relation to the structure-to-diameter cylindrical part of the body. However, the difference between the diameters forms a geometric cliff centripetal consumable stream of snails, and therefore, after his entrance, with rotation of the casing is formed a detachment zone. This zone has a fixed border detachment, located at the edge of the escarpment, the area of abutment of the thread is displaced along the body, and the area of the return flow in the form of a deformed torus. At the same time on unproductive rotational movement of liquid in the separation expended considerable energy that is the first reason for the decline in the efficiency of the workflow. Furthermore, the area of the return flow clutter the section on the initial part of the housing, and therefore the expenditure flow is concentrated through a narrow pricebuy region. This fact leads to two features - the first is that the narrow section on the condition of constancy of the costs of cross-sections of the flow causes a local increase in speed, which also causes an increase in hydraulic resistance is proportional to the square of the speed change, the second determines the extension of high-speed flow with the formation of local zones of reduced pressure after the narrow section. The pressure in this zone may be below the saturated vapor pressure, and its size with the growth temperature increases, therefore, it C is acted upon by steam of the working fluid. The presence of inhomogeneities in the working volume violate the stability conditions of the sound wave.
The generators of this class are liquid whistles that create a sound field in its internal volume through which the fluid. In the rarefaction phase of the sound wave in the liquid nuclei form and grow cavitation cavity, and in the phase of excessive pressure they instantly klapivad, carrying the seal of energy in space and time with increasing temperature at the point of collapse to 6000°K.
The mechanism of formation of sound waves in such devices is reduced to the manifestation of the action of the combination of several processes. First, the process of expiration of the submerged jet from the injection nozzle into the cyclone is the source of the sound. Thus, the output stream in submerged space is local resistance, causing the final part of the inlet channel is excessive in relation to that space pressure, proportional to the velocity head. Therefore, when the thread exits the hole is removed from the shielding action of the walls of the inlet pipe, and it is due to the elastic forces is expanding. Further along first flow also due to the action of elastic forces, external pressure and later inertial forces, it's about imaeda, and later due to the elastic forces again expands, etc. Thus, stream is an open stream with alternating along its length regions of compression and exhaustion (EVGENIY Ivanov ON the radial component of the jet stream in the flooded space / proceedings of the 6th International scientific-technical conference "Hydraulic machines, hydraulic drives and gidropnevmoavtomatike. Current state and prospects of development" / SPb.: Publishing house Polytechn. Univ. - 2010. - P.76-83). Therefore, all submerged jet noise with the basic frequency determined by the flow rate and nozzle diameter.
The second source vukobratovi is the interaction in the cyclone inlet part of the flow from the other part of him who has committed a complete revolution along the shell of the cyclone. In this case, the second, that is, committed full rotation of the flow due to the velocity component of the pressure compresses the incoming part, reducing the flow area and thereby increasing the hydraulic resistance at the entrance to the cochlea of the cyclone. Increased hydraulic resistance causes a reduction in the rate of the input stream that leads to an increase in piezometric component flow pressure before resistance. High blood pressure before resistance provides a second pressing, that is, the peripheral part of the flow, reducing the hydraulic resistance is ing for the input component and further increased its consumption, both due to the increased cross-section, and due to the increase in speed. The transition energy in kinetic form reduces piezometric part of the input stream, which again leads to its crimping etc.
For the second part of the flow are similar periodic transitions, but out of phase transitions on the input side, and as the hydraulic resistance is the turn of the flow from the tangential direction in the place of interaction inside the cyclone. Thus, the periodic change of the pressure in the zones of compression is the source of elastic waves, i.e. sound waves.
It is advisable that the length of the cylindrical part of the body was a multiple integer of paladin sound waves. In this case, the estimated wave frequencies included in the case, will be reflected from the rigid opposite end of the housing, and therefore the beginning and end of the cylindrical part of the body will become nodes, and mid - antinode of the standing wave. Standing wave involves double amplitude of vibration, consequently, a greater level of energy stored cavitation cavity before the collapse, and more heat in the act of collapse.
The presence of time-varying heterogeneity in the production environment in the form of steam cavities excludes the possibility of creating a standing wave and ultimately reduces efficiency the efficiency of the process of heating the liquid.
The closest in technical essence to the claimed is a device for heating the liquid, containing a working network pump, supply and return piping with shutoff valves, providing the relationship of the heat exchanger with the heat source containing at least one provided with a cylindrical portion in the form of a vortex tube body, at the base of which is placed the brake device, and its other side connected to the front side of the accelerator of the fluid made in the form of a snail, which is connected with the pump and equipped located coaxially with the centerline of the vortex tube accelerator sleeve associated with a channel from the discharge connection of the pump (patent RU 2162571, CL F25B 29/00).
Introduction in the known device for heating the liquid, which is located coaxially with the centerline of the vortex tube accelerator bushing associated channel with the pressure pipe of the pump, provides, first, filling the formed steam cavity additional pressure of focused fluid flow along the axis of the vortex tube, and secondly, it contributes to the suppression of axial backflow of fluid that occurs in the vortex tube, and thus can further reduce the load on the power of the pump, increasing the efficiency of the installation.
However, the axial unmanaged stream affects the structure of the currents only the Central region, and its influence does not extend to the space of the gap located in the wall of the annular zone of the cylindrical part of the body.
If significantly increase the thickness of the jet, to cover the entire cross-sectional area of the casing, the peripheral areas will be an impact of the regional circulation flow of the heat generator with the transit axis. This interaction flows, even at high speeds will result in high overhead power, as well as to reduce the rotational component of the circulation flow, i.e. to exclude from the working process is another source of vukobratovi - oscillation of the rods of the brake device with the frequency of natural oscillations from wrapping their flow.
Moreover, the proposed solution involves a variant of the cochlea, is equal to the diameter of the shell, predicting the exception of the isolation of circulating consumable stream. However, in this case, the circumferential flow in the cochlea is disordered, as in the cross section it is limited to only two parties, not three, as in analog, so in the course of turnover it randomly in the side of the hull spreads, loses intensity. In the acoustic signal from the interaction of the input side of the tangential flow and the circumferential part thereof,made a full turnover in the cochlea, obtained with small amplitude, wishy-washy, there is a whole range of generated frequencies that causes the following effect:
extremely high frequency (>10 kHz) prevents cavitation bubble to acquire the necessary supply of elastic energy, and as a result, the process of collapse is not enough raises the temperature of the liquid;
- when low frequency is enlarged cavity cavity (bubble) in a short phase of collapse not have time to fully disappear, and only pulses. The lack of impact of the collapse also eliminates the investigation, which resulted in the water should be hot.
In addition, an important factor in this workflow is that the liquid working medium containing dissolved therein gases that are released with increasing temperature and decreasing pressure. The liberated gas is collected in local areas of low pressure and in the paraxial region due to displacement of the heavier liquid in the centrifugal field. The presence of gas chambers in the working volume of the heat source, as well as steam, unpredictable change the conditions of occurrence of wave processes and eliminates the possibility of a standing wave and thus significantly reduces the efficiency of the device.
Moreover, the process of separating gases from RA the eyes of the liquid leads to instability of the generator, because continuously emitted gas accumulates to a certain amount in the paraxial region, especially at the outer end cover snails, and carried away by the stream. Then the cycle repeats, gas cavities grow and again swept flow, etc. In this part of the gas volume participates in the circulation through the pump, thereby reducing its performance and, in addition, increasing the frequency of cycles of growth in gas chambers. Therefore, in the working space of the boiler constantly provides increased volume of gas.
A disadvantage of the known device is not a high efficiency heating and instability of the device.
The objective of the proposed technical solution is to increase the efficiency of heating the liquid and the stability of the device.
The problem is solved as follows. In the device for heating the liquid, containing a working network pump, supply and return piping with shutoff valves, providing the relationship of the heat exchanger with the heat source containing at least one provided with a cylindrical portion in the form of a vortex tube body, at the base of which is placed the brake device, and its other side connected to the front side of the accelerator of the fluid made in the form of a snail, which is connected with the pump and is equipped with located coaxially with the centerline of the vortex tube accelerator bushing, the associated channel with the pressure pipe of the pump, booster sleeve of the heat generator is made in the form of a set of nested concentric with the radial clearances fixed sleeves.
When you do this:
- accelerator bushing may be made in the form of concentric posted by fixed and rotary groups mating half-rings - sleeves, and a rotary group is connected kinematically with lever adjustment and lock, and the stationary half rings-sleeves can be configured to update the rotation and fixation;
- fixing of each of the nested sleeves can be made at its input, in the gap concentric alternating sectors, the width of which is equal to the distance between them, and in front of each gap installed ferrule with a similar profile, with the possibility of rotation, including from the actuator, relative to the common axis of the sleeves and fixing the number of fastening sectors may not coincide with a similar number of sectors on a movable holder;
- in the wall of each of the nested sleeve along its axis can be performed one or more channels, starting on the output ends of the sleeves and connected by piping and valves equipment with the atmosphere, a source of gas flowing into the container, with the inner cavity of the cochlea suction or discharge pipes for the OSA;
- any of concentric cavities may be connected by separate pipes and valves and equipment with the atmosphere, a source of gas flowing into the container, with the inner cavity of the cochlea, suction or discharge pipe of the pump;
- the entrance to each concentric cavity can be made adjustable in the direction of in the form of the l-shaped rotating slotted nozzle is placed tightly in the cylindrical hinge that can be locked;
- the output end of the largest diameter of the sleeve can be placed in the plane of the outer wall of the cochlea and its annular cavity communicated with a channel from the outlet pipe of the heat generator;
- the Central part of the accelerator bushing can be made through the entire length of the heat source, and its wall may be perforated.
The execution of the accelerator sleeve of a heat source in the form of a set of nested concentric with the radial clearances fixed bushings allows you to dismember unmanaged stream into several concentric fragments, to give them the required quality, to establish a special way interaction between them and eventually get the jet stream with the required properties. So, at its simplest embodiment, for example, consisting of three concentric rings, the outer ring of the jet elements by the outer is the first pressure and the ejection of the environment from each of the internal space gain, first, dome-shaped, and secondly, within each dome creates a pressure drop. The latter factor leads to an increase in the differential pressure before the nozzle and on each subsequent jet element, resulting in each a more Central component of the jet increases the speed of expiration (EVGENIY Ivanov research Results of a computer model of the ring nozzle ejectors / EVGENIY Ivanov, A.V. Sogin // Proceedings of International scientific-technical conference "Hydraulic machines, hydraulic drives and gidropnevmoavtomatike" / SPb.: Publishing house Polytechn. Univ. - 2008. - P.61-64). That is, the annular jets have a radius different speeds, in the center of the large, to the periphery smaller, and not due to attenuation of the jet, and due to the mechanism of its formation. Therefore, as the distance from the nozzle jet becomes thinner in the abs due to entrainment lower-speed peripheral regions of Central Expressway. This configuration corrects the existing structure of currents in the vortex tube boiler, inlet deforms the area of separation, extending bushing section and dragging along the pipe due to ejection of the expenditure stream. The result can influence a narrow high-speed Central element of a jet of steam cavity and counter flow along the axial space of the housing halogenerator is a, and less rapid peripheral part of the jet in the interaction with the vortex circulation flow reduces the impact of the collision and slightly weaken the vortex component of the circulation stream.
It was established experimentally that the axis of rotation of a vortex flow in the cylindrical part of the housing has a spiral shape, and this fact indicates the existence of the reasons leading to asymmetry. The asymmetry of the same flow causes additional hydraulic energy losses, which could not be. To compensate for the mentioned asymmetry of the accelerator bushing may be made in the form of concentric posted by fixed and rotary groups mating half-rings-sleeves. Moreover, the rotary group is connected kinematically with lever settings, which provides angular displacement of movable relative to the stationary half rings and thus creates the necessary degree of asymmetry of the incoming axial flow. The stationary half rings-sleeves can be made with the possibility of update of the turn, which provides the angular orientation of a given asymmetry in contrast to the initially available.
Ensure fixing of each of the nested sleeves at its input, in the gap concentric alternating sectors, the width of which is equal to the distance between them, and setting before entering the each gap clip with a similar profile, with the possibility of rotation of the actuator relative to the common axis of the sleeves creates an intermittent stream of each annular element with the desired pulse frequency. This simultaneous operation of the totality of the annular jet elements can multiply their number to increase the oscillation frequency.
A similar result can be obtained when the non-coincidence of the number of fastening sectors with a similar number of sectors on a movable holder, however, significantly reduced the amplitude of the received pulse pressure.
In this case, the input jet axial intermittent stream is an additional source of vukobratovi.
The offset from the fixation of the movable clamps provides various degrees of overlap of the sectors, i.e. a different area of the passage sections, consequently, different fluid flow on each annular element, which in turn will create the desired structure of the jet.
The setting structure of the jet can be performed not only by introducing additional resistance in each flow-through annular channel, and adjusting the degree of vacuum between adjacent ring segments. By increasing the depth of vacuum, for example, by connecting the base region at the exit end of each sleeve with the suction inlet of the pump closing the dome of each annular element occurs earlier, i.e. closer to the edge of the nozzle. At lower vacuum clamping ring jet in the dome will occur at a greater distance from the nozzle. For this bottom area Starcom sleeve should be connected either to augment capacity, or to the pressure connection of the pump or with the atmosphere through the locking and regulating equipment. By adjustment of the regulating equipment, you can ensure that the closure of each ring fragment of a jet or in a single point, then after closing elastic shock will occur subsequent scattering of the fragments of the jet, or in a subsequent one for the other points - then after closing by the mutual repayment shock will occur a smooth transition in monstruo. Moreover, this method of controlling the jet and its structure is energetically more favorable compared with the introduction of additional hydraulic resistance.
To better control the jet structure is appropriate each ring cavity to connect the individual piping and shut-off valve to augment capacity, pressure or suction pipe of the pump. This will give each annular cavity, until, to use it as maestralnog space. Shut-off and regulating equipment allows you to change the depth of the vacuum in it, i.e. between the annular jets, in addition to changing pressures of the individual fluidic elements.
For a complete elimination of shock interaction of the axial input stream with circumferential component of the vortex circulation flow makes sense to give each or some is that, i.e. peripheral circuit elements of the input streams rotational part of the motion by logging into the annular cavity is adjustable in the direction of in the form of the l-shaped rotating slotted nozzle is placed tightly in the cylindrical hinge can be locked. In this case, the axial orientation of h-shaped rotating slotted nozzle will provide a conventional axial flow without ring twist. Rotate the l-shaped slotted nozzle perpendicular to the axis of the housing will give the maximum degree of the district of spin. However, at the exit of the nozzle the flow due to centrifugal forces disperse a fan on maximum radii.
The intermediate direction of the entrance will create a ring spin in conjunction with the ejection property that will provide a dome-shaped annular jet, i.e. accelerating subsequent nested components and at the same time having a circumferential rotation, allowing unstressed occurrence of axial flow in the vortex circulation, the desired deformation of the tear-off areas and additional ejecting the ability in the direction of the useful movement of the working environment.
Execution output end of the largest diameter of the sleeve in the plane of the outer wall of the cochlea with the message her ring cavity with a channel from the outlet pipe of the heat source provides for the collection and organized features is from the working space of the heat emitted from the liquid air. In this case, previously dissolved air is released under the action of the sound field from the fluid and collected by squeezing more dense fluid in the Central part of the vortex flow. The greatest intensity of gas separation takes place in the initial phase and sound effects on the fluid in the cochlea, therefore, the most effective selection of gas will be from its Central part.
When performing the Central part of the accelerator bushing through the entire length of the heat-generator:
- ordered for in the resulting annular space, the axis of rotation of the fluid along the length of the heat source moves from helical to straight configuration;
- filled volume of the steam sleeve cavity, located in the paraxial region;
- the opportunity to submit, without breaking the patterns formed by the annular elements, the cooling fluid. The cooling of the Central part will cause water condensation in the local steam cavities and thereby the destruction of these cavities. Moreover, the cooling measures in this case can be made irrespective of the flow rate of transit of the heated stream.
In the end, the thickness of each annular jet element, the distance between them, the ratio between the circumferential and axial velocities, the nominal speeds allow you to create sookun the second axial jet ejecting a stream with the specified properties and produce on each mode fine possibility for adjustment of the heat generator to the required modes of operation with the control and management of configurations and sizes of steam-gas the cavities. The result is to create favorable conditions for the passage of sound waves, which at times will increase the efficiency of heat generation and stabilizes the workflow.
The invention is illustrated by drawings:
Figure 1. Diagram of the device for heating the liquid heat generator containing multiring accelerator sleeve.
Figure 2. The structure of the currents (without vortex component) in the cochlea and the cylindrical part of the body heat source to source and offer options.
Figure 3. Design accelerator sleeve in the form of concentric posted by fixed and rotary groups mating half-rings-sleeves.
Figure 4. The design of the inlet device accelerator sleeve to give the ring elements jet pulsations.
Figure 5. Diagram of the device for heating the liquid heat generator, ring accelerator bushings which have longitudinal channels.
6. Diagram of the device for heating the liquid heat generator, the entrance to the annular space of the accelerator bushing which is made adjustable in the direction of.
7. Diagram of the device for heating the liquid heat generator, accelerator bushing which is adapted to generate an axial fluid flow and selection of the emitted gas.
Fig. Diagram of the device for heating the liquid heat source, price is the General part of the accelerator bushing which is made through the entire length of the heat generator.
The device for heating the liquid contains (1): working network pump 1, feed 2 and 3 return piping with shut-off valves 4, which provides the relationship of the heat exchanger 5 with the suction inlet 6 of the pump 1 and the outlet pipe 7 of the heat generator. The heat source contains provided with a cylindrical portion in the form of a vortex tube housing 8, in which is placed the brake device 9, and its other side connected to the front side of the accelerator of the fluid made in the form of snails 10, which is connected by a pipe 11 with the pump 1 and equipped located coaxially with the centerline of the vortex tube 8 accelerator sleeve 12, the associated channel 13 and the valve 14 with the discharge pipe 15 of the pump 1. Accelerator bushing 12 of the heat generator is made in the form of a set of concentric nested in its case with the radial clearances of the sleeves 16, 17, fixed to each other at longitudinal radial ribs 18, 19 (Figure 2). Accelerator sleeve 12 mounted on the outer wall of the cochlea 10 made in the form of cover 20.
When you do this:
- accelerator sleeve 12 may be made in the form of concentric posted by motionless 21 and turning 22 groups of mating half-rings-sleeves (Figure 3), and the rotary group kinematically connected by means of shaft 23 with the lever settings 24 and a retainer (not shown), and the stationary floor of the rings-sleeves 21 may be configured to update the rotation and fixation, for example in the form of a flange connector (not shown);
- fixing of each of the nested sleeves 16, 17 may be made at its input, in the gap concentric alternating sectors 25, the width of which is equal to the distance between them, and in front of each gap installed ferrule 26 with a similar profile, with the possibility of rotation, including from the actuator 27, relative to the common axis of the sleeves and fixing the number of fastening sectors 25 may not coincide with a similar number of sectors on a movable holder 26 (Figure 4). The drive can be made in the form of a worm gear, a crown gear 28 on the yoke 26 and the worm 29, one end of which is connected with an electric motor 27, and the second has a transverse profile under wrench;
- in the wall of each of the nested sleeve 16 or 18 along its axis can be performed one or more channels 30 (Figure 5), starting at the output ends of the sleeves and connected by pipes 31 and shut-off and control apparatus 32 with the atmosphere, a gas source 33, augment capacity 34, with the inner cavity of the cochlea 10 6 suction or injection nozzles 15 of the pump 1;
- sign in to any of concentric cavities may be made adjustable in the direction (6) in the form of the l-shaped rotating slotted nozzle 35, is placed tightly in the cylindrical hinge in the form of seat 36 with the option of fixing a coupling nut 37, and can be connected by separate pipes 26 and shut-off and control apparatus 32 with the atmosphere, a gas source 33, augment capacity 34, with the inner cavity of the cochlea 10, 6 suction or injection nozzles 15 of the pump 1;
- the output end of the largest diameter of the sleeve 12 can be placed (Fig.7) in the plane of the outer wall of the cochlea 20, and its annular cavity communicated with the channel 38 with the outlet pipe 7 of the heat generator or the surge tank 39.
- the Central part of the accelerator sleeve 40 may be made through the entire length of the heat generator (FEG), including perforated walls, and with their own pump 41 or compressor to feed it the cooling medium.
The device for heating the liquid works as follows. Pump 1 under pressure (4-6 atmospheres) pumps water into the injection nozzle 11 of the heat source (Figure 1). As you progress through the injection nozzle 11, the flow of water is crimped and therefore accelerated falls in evidence 10, and tangentially. Then, having made almost a complete revolution along the shell of a snail 10, the flow compresses its input part and due to the interaction of two components one thread that has a periodic nature, are elastic waves that propagate along the vortex tube 8 to the outlet nozzle 7. The high turbulence of the flow, d is the op perate sound waves, also high temperature condition in the cochlea 10 intensive degassing of the working fluid from previously dissolved air which is released in the field of centrifugal forces more dense medium to the center of the cochlea.
Revolving in the cochlea 10, the liquid has a radial consumable component, the value of which increases as it moves toward the center, and the total flow rate corresponds to the optimal pump flow. At the entrance to rotate in a vortex tube 8 this accelerating centripetal flow (Figure 2) separates from its inner cylindrical surface, forming in the area of the intensive margin of return over and narrow the space for consumable axial flow, which arises more and cavitation cavity W. the Presence of the accelerator bushing 12 in the form of a set of nested concentric with the radial clearances fixed bushings alters the structure of the currents. So, at its simplest embodiment, for example, consisting of three concentric rings (12, 16, 17), the outer ring of the jet elements due to external pressure and ejection of the medium from each maestralnog space acquire, first, dome-shaped, and secondly, within each dome creates a pressure drop. The latter factor leads to an increase in the differential pressure before the nozzle and on each subsequent jet element,resulting in each a more Central component of the jet increases the flow rate. That is, the annular jets have a radius different speeds, large center to the periphery of the smaller, therefore, as the distance from the nozzle jet becomes thinner in the abs due to entrainment lower-speed peripheral regions of Central Expressway. This configuration corrects the existing structure of currents in the vortex tube 8 generator:
- at the entrance deforms the area of separation, extending bushing section and dragging along the pipe due to ejection consumable flow;
narrow high-speed Central element of a jet of steam fills the cavity W and eliminates counter flow along the axial space of the body heat source;
- increased ejection properties annular jet intensively entice emitted from the liquid air, evenly distributing it along the vortex tube and then removing through the outlet 7.
And less rapid peripheral part of the jet in the interaction with the vortex circulation flow reduce impact collision and slightly weaken the vortex component of the circulation stream.
Next vortex flow, moving along the vortex tube 8 communicates with the plates of the brake device 9, flowing them through a circumferential component of motion. When this plate make oscillatory motion with a frequency of own oscillations and transfer panel is further disturbance of the liquid along the vortex tube 8 in the direction of the volute 10. Extending from two sources in opposite directions, elastic waves in conjunction with the oscillation of the vortex tube resonator 8 is reflected from the ends of this pipe and create a standing wave with twice the amplitude, which increases the supply of energy to the periodic formation and growth of cavitation cavity and increases the production of thermal energy when they collapse.
Leaving through the outlet 7 of the heater, the heated liquid through the supply pipe 2 reaches the heat exchanger 5, transfers thermal energy to the consumer and on the return pipe 3 passes through the suction pipe 6 into the pump 1. In the pump 1 water again acquires energy in the form of velocity and pressure and the cycle repeats. For configuration and coordination modes of teplogeneratora shutoff-regulating apparatus 4 and 14, and for ease of installation and maintenance kit bushings with brackets 18 and 19 is mounted on a removable cover 20.
When performing accelerator sleeve in the form of concentric posted by motionless 21 and turning 22 groups of mating half-rings bushings (3) there are three basic modes of operation of the heat generator:
with the full diversity motionless 21 and turning 22 groups of semirings bushings using the lever 24 through the shaft 23, the operation of the accelerator bushing will occur in p is lnai analogy with the above case with only one feature. In this case, the dome-shaped elements of the jet will be formed from different clamping ring fragments jet stream;
with the full combination of using all of the same lever 24 through the shaft 23 of the movable half-rings bushing 22 with a fixed 21 to form a continuous flow section through which expires eccentric monostrut which deforms half of the torus sleeve area of the return flow in the space of separation that most likely will not provide the correct flow pattern in the heat;
- intermediate rotary group 22 semirings of the sleeves relative to the stationary group 21 assumes a combination of the above structures, consisting of four sectors: two identical diametrically opposite ring and two other diametrically opposite - phase with menstrua and land without a jet stream.
Obtained for asymmetric, with the possibility to adjust its extent, can compensate for the existing asymmetry associated with the influence of the input tangential nozzle snails. The setting of the direction of the asymmetry is produced by rotation with subsequent fixation of the entire block of the accelerator sleeve 12, for example a flange connector.
In a constructive option (Figure 4), suggesting fixing each of the nested sleeves 16, 17 totheir inputs in the gaps of concentric alternating sectors 25, a width equal to the distance between them, and with the sleeves 26 with a similar profile, installed in front of the entrance to each radial clearance for rotation of the actuator 27, generates intermittent pulsating jets. This happens as follows. During normal operation of the heat source of the discharge pipe 15 of the pump 1 via line 13 water under pressure supplied to the inputs of concentric gaps. The inclusion of each of the actuators 27 provides the rotation of shaft 29, which through the worm pair, the worm shaft 29 and the worm crown 28 provide rotation of each of the clips 26, has a profile similar to the circuit formed in the gap alternating mounting sectors 25. With matching holes in the gap and the clip through them due to the pressure from the pump fluid moves in the axial direction at the Central part of the device. With mutual overlapping sectors of holes thread is interrupted. Thus, there is pulsating jet, which is an additional source of vukobratovi.
If you shift the phase of each of the annular gap, the cumulative frequency of the sound field will increase in proportion to the number of sleeves. If the number of holes in the yoke and the gap will not match, the full match is going to happen every time only one pair of holes, but more often.
In the way the nom position of the shafts 29 the degree of overlap of the holes will determine the hydraulic resistance of each annular channel, which can be adjusted to the required value of the shaft 29 with a wrench. The ratio of the intensities of the expiry of each ring fragment stream will correspond to a certain structure.
Because the adjustment and setting of the multiring structure of the jet, described in the previous design (Figure 4), involves the intentional introduction of an additional hydraulic resistance, it is energetically disadvantageous. Another proposed design of the adjusting device operates as follows (Figure 5). At the end through the annular channel between the sleeves 12, 16, 17 jet flows over the ends of each of the annular bushing in the so-called bottom region, due to the entraining action of the elements jets vacuum is created, the value of which is proportional to the speed of expiration, and the thickness of the annular jet component. When connecting the base region through channels 30 through pipes 31 and shut-off and control apparatus 32 with the suction cavity 6 of the pump 1 vacuum depth will increase and the closure ring component of the jet in a domed shape will occur at a smaller distance from the output end of the sleeve than in the absence of correction. When connecting the base region through channels 30 through pipes 31 and valves and the equipment 32 to the discharge cavity 15 of the pump 1 or augment capacity 34 depth vacuum will drop and ring closure of the component of the jet in a domed shape will occur at a greater distance from the output end of the the bushings. Selecting a different degree of vacuum for various ring elements jet, it is possible to achieve uniform explode along the length of the clamping points of the different annular elements jet, full match them at one point or incomplete matches. In the first case, the fusion of ring elements in the common ink flow will occur gently, in the second case, a pulse with a range of flow components in radial directions that might destroy the structure of flows in the heat.
When the flow through the channels 30 of the gas component in the form of air or a specific gas from the tank 33, for example, when using the device in water attractions is its uniform distribution along the length of the vortex tube 8. And it allows to use in the workflow gaseous component, and to calculate and set the device to work with a uniform and stable distribution in the vortex tube air or other gas.
A similar beneficial effect is achieved when the bottom connection areas for output ends of the accelerator bushings through the channels 30 with a Central region of the cochlea 10. In this case, the separated during rotation of the fluid in the cochlea and the irradiation of acoustic field gas is collected in the center of the cochlea 10 and the vortex tube 8, providing a non-uniform distribution. Followed the Sabbath.) the speed of sound distribution in different parts of the vortex tube at the same time different, which makes it impossible to provide a resonant mode for the sound waves. When ejection of air through the channels 30 of the Central part of the heat generator in the ring maestrino space ensuring uniformity move his jet flow along the vortex tube, which also gives the possibility to configure the device at the resonant mode and increase the efficiency of heat production.
When separate connecting each annular cavity through the piping and valves equipment sources, made in the form of replenishing tanks, pressure or suction pipe of the pump, the atmosphere appears more accurate regulation of the structure of the jet up to the fact that give each annular cavity its function, for example to use it as above channels (Figure 5) in the walls of the nested sleeves with the same set of consequences. In addition, when you log in any of concentric cavities in the form of the l-shaped rotating slotted nozzle 35 (6), is placed tightly in the cylindrical hinge in the form of a saddle 36 to lock the locking nut 37, it becomes possible to completely exclude the shock interaction of the input axial flow with circumferential component of vikhreva what about the circulating currents. Thus, when the orientation of the nozzle 35 in the saddle 36 in oblique, i.e. intermediate between the axial and circumferential directions at the entrance to the concentric cavity creates a circular spin the input stream, a reasonable measure which will provide:
- unstressed his entrance in the existing structure of currents;
domed closure of each of the ring fragments;
- accelerating the Central parts of the jet;
- increased ejecting the ability of the jet stream;
the deformation zones of separation;
- uniform distribution along the length of the vortex tube gas component.
The listed set of positive qualities will reduce hydraulic loss process and increase the efficiency of heat dissipation due to the implementation of the resonant mode.
Useful functions of the above devices was limited to partial removal of the tear-off areas, the steam filling the cavity axial inlet flow of water and anti-parasitic comer axial flow, uniform distribution of air along the pipe. Moreover, previously dissolved in the liquid air is involved in the working process of the device for heating the liquid to a greater extent. To fully mitigate its impact (7) the output end of the largest diameter of the sleeve 12 is placed in the plane of the outer wall of the cochlea 20. In this case, the air dissolved RA is it in the liquid, going by releasing more dense fluid in the Central part of the volute 10. The greatest intensity of gas separation takes place in the initial phase of the sound exposure of the liquid, i.e. in the cochlea, therefore, the most effective selection takes place in its Central part, where installed catching sleeve 12. Assembled in the sleeve 12 free air due to excessive pressure (3-3,5 ATM.) the pipe 38 is given in the safety device 39, or through the supply pipe 2, the heat exchanger 5, the return pipe 3 into the pump 1 to a new round of circulation. However, the most expedient is the complete elimination of air from the workflow through the safety device 39, in this case there is no repeated interaction with him. The Central components of a circular jet in this case operate in normal mode, that is supplied from the discharge end 15 of the pump 1 through line 13 and valve 14 and further move in the axial jet stream.
The last solution (Fig) from Arsenal offer eliminates cavitation cavity due to:
- substitution of the Central part of the accelerator sleeve 40 made through the whole length of the boiler;
- cooling areas of probable occurrence of cavitation cavities refrigerant moving through the Central part of the accelerator bushing 40;
- cooling and simultaneity the temporal filling of cavitation cavities refrigerant through the perforated wall of the Central part of the accelerator bushing 40.
In this case, the heat generator and the system of annular jets operate in normal mode, however, the pump or compressor 41 pumps the refrigerant (liquid or air) in the Central part of the accelerator sleeve, made in the form of a pipe through the whole length of the heat source, and resets it to the drain. When moving through the pipe, the refrigerant takes heat from the Central part of the heat source, lowers there temperature, thus preventing the evaporation and condensing steam cavern, coming from the periphery.
When performing the walls of the pipe 40 is perforated as refrigerant can only be used by the working fluid of the heat source, because its part through the perforated holes will penetrate into the heat source, to fill and to simultaneously cool the steam cavity.
The offered range of tools to eliminate the influence of harmful factors allows different combinations of these funds for each case, or range of temperatures to develop measures to improve the efficiency and stability of the process of heating the liquid.
1. The device for heating the liquid, containing a working network pump, supply and return piping with shutoff valves, providing the relationship of the heat exchanger with the heat source containing at least one equipped with cylindricality in the form of a vortex tube body, at the base of which is placed the brake device, and its other side connected to the front side of the accelerator of the fluid made in the form of a snail, which is connected with the pump and equipped located coaxially with the centerline of the vortex tube accelerator bushing associated channel with the pressure pipe of the pump, characterized in that the accelerator sleeve of the heat generator is made in the form of a set of nested concentric with the radial clearances fixed sleeves.
2. A device for heating a liquid according to claim 1, characterized in that the accelerator bushing is designed as concentric posted by fixed and rotary groups mating half-rings-sleeves, and a rotary group is connected kinematically with lever adjustment and lock.
3. A device for heating a liquid according to claim 1, characterized in that the fixing of each of the nested sleeves are manufactured at its input, in the gap concentric alternating sectors, the width of which is equal to the distance between them, and in front of each gap installed ferrule with a similar profile, with the possibility of rotation about the common axis of the sleeves and commit.
4. A device for heating a liquid according to claim 1, characterized in that the wall of each of the nested sleeve along its axis made one or more channels, starting on the output ends of the sleeves soedinennyh pipelines and valves and equipment with the atmosphere, the source gas flowing into the container, with the inner cavity of the cochlea, suction or discharge pipe of the pump.
5. A device for heating a liquid according to claim 1, characterized in that each of the concentric cavities may be connected by separate pipes and valves and equipment with the atmosphere, a source of gas flowing into the container, with the inner cavity of the cochlea, suction or discharge pipe of the pump.
6. A device for heating a liquid according to claim 2, characterized in that the stationary half rings-sleeves made with the possibility of rotation and fixation.
7. A device for heating a liquid according to claim 3, characterized in that the swivel clip is supplied with the drive.
8. The device for heating the liquid in PP, 7, characterized in that the number of fastening sectors does not match the number of similar sectors on a movable holder.
9. A device for heating a liquid according to claim 5, characterized in that the entrance to each concentric cavity accelerator sleeves are made adjustable in the direction of in the form of the l-shaped rotating slotted nozzle is placed tightly in the cylindrical hinge can be locked.
10. A device for heating a liquid according to claim 5, characterized in that the output end of the largest diameter of the sleeve is placed in the plane of the outer wall of the cochlea and its calculability reported by the channel with the outlet pipe of the heat generator.
11. A device for heating a liquid according to claim 5, characterized in that the Central part of the accelerator sleeves are made through the entire length of the heat generator.
12. A device for heating a liquid according to claim 11, characterized in that the wall of the Central part of the accelerator sleeves are made of perforated.
FIELD: machine building.
SUBSTANCE: invention relates to the method of a hybrid unit control and to the hybrid unit in which this method can be implemented. Control method for a unit 1 comprising at least a compressor plant 2 and/or a drying unit on one side and a heat regeneration system 3 on the other side. The heat regeneration system 3 absorbs heat from the compressor plant 2. Additionally the hybrid unit 1 comprises a controller 5 and a device 6 to set one or more system parameters. The controller 5 performs control both of the compressor plant 2 and/or the drying unit and the heat regeneration system 3 on the basis of the said system parameters along with the optimisation of the overall efficiency of the hybrid unit.
EFFECT: reduction of total power consumption by the hybrid unit.
3 cl, 1 dwg
SUBSTANCE: invention is referred to the field of electric engineering and operation of systems with asynchronous electric motor and frequency control, in particular to control of rotation speed and prevention of critical operation modes. Technical result of the method lies in that reliability of the cavitator is improved; its stable operation is maintained by means of operation mode correction when the detected sign proves potential stalling with change in the electric motor rotation speed. The method for control of stability improvement in cavitator operation includes liquid passing in a gap between the rotor and stator and subsequent conversion of the received energy into thermal energy, control by the heating process. The claimed method for control of the cavitator operation modes is based on the analysis of higher harmonics ratio in the electric mains, its comparing with the threshold value and shaping of the control signal for frequency control unit which controls the rotation speed of the electric motor.
EFFECT: control method allows reaching maximum efficiency for activation of process liquids for the purpose of their use in different processes of chemical production such as dilution, heat generation, and synthesis.
FIELD: power engineering.
SUBSTANCE: thermoelectric link comprises a coolant pipe, coated with a layer of a dielectric material with high heat conductivity, made of separate circular toothed ribs with teeth that are tightly pressed to each other, inside of each one there are circular zigzag-shaped rows of thermoelectric sections, made of alternating and joined thermoemission converters, each comprising a pair of sections made of different metals M1 and M2, ends of which are flattened and tightly pressed to each other and arranged in zones of heating and cooling, near the edge of the rib tooth and the external surface of the coolant pipe, accordingly, besides, free ends of zigzag-shaped circular rows of each thermoelectric section are connected to each other by links, and free ends of circular rows of extreme thermoelectric sections, in their turn, are connected by electric wires with collectors and current leads.
EFFECT: increased reliability and efficiency of a thermoelectric link for a pipe.
SUBSTANCE: method comprises the following steps: (a) mixing a first substance which includes an oil-bearing rock and a second substance which includes sensitive particles in form of dipole antennae to form a mixture of 10-99 vol. % of the first substance and 1-50 vol. % of the second substance; (b) exposing said mixture to radio frequency energy with frequency or frequencies from said set of one or more radio frequencies and power sufficient for heating the sensitive particles; and (c) continuing exposure to radio frequency energy over a period of time sufficient for heating sensitive particles of said mixture to average temperature higher than about 100°C (212°F). The method is characterised by that said sensitive particles are conducting carbon fibres with length between 1/2, 1/4, 1/8 and 1/16 the wavelength.
EFFECT: said sensitive particles can have advantages for radio frequency heating of hydrocarbon compounds, for example high temperature, anhydrous treatment as well as higher rate or efficiency.
14 cl, 3 ex, 1 dwg
SUBSTANCE: liquid heating apparatus comprises a heat generator comprising a housing having a cylindrical portion and a liquid movement accelerator, designed as a cyclone, a pump connected to the heat source via an injection nozzle, where at least one insert is placed, and a heat exchange system. The insert is formed as a continuous plate along the injection nozzle oriented perpendicular to the ends of the cyclone. The insert in the injection nozzle forcibly expands the jet in its entry into the cyclone, which results in formation of a vacuum region, downstream the compression region, the vacuum again, compression, etc. As we move into the cyclone, collapse and cavitation are formed in turns on each element of the jet flow in these regions, providing hot water or other process fluid.
EFFECT: invention makes it possible to improve heating efficiency and reliability of a fluid device.
10 cl, 5 dwg
FIELD: engines and pumps.
SUBSTANCE: electrically driven pump-heat generator comprises encased scroll, impeller, discharge outlet, stator and drive motor hollow rotor running in plain bearings. Heat tube is made inside said hollow rotor. Hydrodynamic rotary cavitator fitted on the shaft incorporates ultrasound resonance cavitation amplifier. Coaxial heat tubes are fitted on hollow shaft between said stator and rotor.
EFFECT: higher efficiency, decreased electric power consumption.
2 cl, 1 dwg
SUBSTANCE: hydraulic heat generator comprises a cylindrical body with a cover and a bottom, an element in the form of a wound spring, nozzles for supply of cold water and drain of hot water. A wound flat spring with holes is fixed to turns of a hollow element, in its cylindrical part, outside, in the horizontal position, and on the vertical pipe installed inside the element there are hollow washers installed, filled with a heat-accumulating substance and equipped with holes. The vertical shaft from a wind engine via a reducer and a horizontal shaft having a solid disc at the end, is mechanically via a finger on a disc and a crank are connected with a connecting rod and a stem rigidly fixed with a hollow element and a pipe installed inside the body.
EFFECT: compactness and reduced metal intensity with increased transforming devices, making it possible to increase coefficient of mechanical energy transformation into thermal one.
SUBSTANCE: heat generator includes a cylindrical housing, a cover plate and a bottom. Inside the housing there installed on a ring attached to the wall is a pulse speed variator having a shaft with three rows of blades, in its upper part. The cover plate is provided with an electric generator, which is mechanically connected through friction discs to a drive shaft, as well as an electric accumulator connected through leads to the generator and electric board. Under the cover plate inside the housing there installed is a tubular coil having inlet and outlet branch pipes connected to cold and hot water supply systems.
EFFECT: heat generator design is compact; it has considerable number of rotating parts, which increases its thermal efficiency.
SUBSTANCE: system includes a heat generator, in the housing of which there fixed on the shaft are two discs forming an antechamber in the housing volume, a chamber of space between the discs and a post-chamber. Location of the discs on the shaft is calculated as per a certain formula; two discs of the heat generator are filled with pressed magnets arranged in a circumferential direction; bifilar coils with working and control windings, the cores of which are put tightly into the housing, are installed above the discs. Besides, a control unit is introduced, which is arranged between working and control windings of coils; in addition, the heat generator housing volume includes an electrolyser, the pairs of electrodes of which are made of one nipple electrode, the other one that is pressed into the housing; pairs of electrodes are arranged in a circumferential direction of the housing inner volume in the space between the discs and in the post-chamber. The system also includes a gas collector of oxygen-hydrogen mixture; the heat generator inlet is connected to the receiver outlet; the heat generator outlet is connected to the gas collector, and the gas collector is connected to the receiver inlet.
EFFECT: proposed invention allows reducing power consumption for obtaining heat and generation of gases.
SUBSTANCE: heat generator is installed in a closed circuit, at which vortex flow of water is formed due to conversion of a head created with a pump and the received flow is accelerated in a water movement accelerator, with further removal of heat obtained in the heat generator from outlet water flow to the consumer. At that, at the heat generator inlet, water flow is broken with an air cavity in the zone of its phase transition, in which the impact of drops of water at its outlet in atomisation cones is provided. An air cavity is formed at the inlet of the heat generator housing, and a volute has the shape of logarithmic spiral; at that, flow of liquid from the volute to a vortex pipe is performed through the logarithmic spiral pole, and a centrifugal pump and a shutoff valve is installed between a suction pipeline and a delivery pipeline.
EFFECT: obtaining more energy-saving method and economic water heating plant.
9 cl, 1 dwg
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: 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.
FIELD: heat-power engineering; water heating systems for living and industrial rooms.
SUBSTANCE: proposed liquid heater has stator with cylindrical cavity and rotor mounted in this cavity at spaced relation and secured on rotating shaft; intermediate bush or disk mounted between rotor and shaft is made from dielectric material, thus reducing losses of heat over rotor shaft.
EFFECT: reduction of heat losses; enhanced efficiency.