Heat exchange in general (F28)

F28            Heat exchange in general(9585)

Shell-and-tube heat exchangers in processes of hydrocarbon degradation c3-c5 (versions) // 2642440
FIELD: chemistry.SUBSTANCE: invention relates to the shell-and-tube countercurrent heat exchanger to heat the raw vapours in the processes of dehydrogenation of paraffin hydrocarbons C3-C5 by the heat of contact gas coming from the dehydrogenation reactor comprising a vertical cylindrical casing (1 ), a bundle of the heat exchanging tubes (2) with an upper (4) and a lower (3) tube gratings, a nozzle (5) and a distributing chamber (6) to input the contact gas in the upper part of the tube space (2) of the heat exchanger (11), a collecting chamber (7) and a nozzle (8) to output the chilled contact of gas from the lower part of the tube space, as well as nozzles (9) to input vapours of the raw material in the annular space of the heat exchanger (11), divided into sections by transverse horizontal partitions of the segment type (13), and to output (10) the heated vapours of raw materials from it. The heat exchanger is also characterized by the fact that the heat exchanger (11) contains connections (12) to supply a part of the feed raw material in a liquid form for the heat exchanger (11) into the intertube space of the bundle of the heat exchange tubes (2) and/or into the intertube space of the bundle of the heat exchange tubes (2) divided by sectors (17), which are limited to the upper (4) and lower (3) tube gratings and vertical channels (18) between the sectors (17). A version of a shell-and-tube heat exchanger for cooling the contact gas is also proposed.EFFECT: increase in capacity of dehydrogenation plants of hydrocarbons C3-C5 and reducing the costs in production.22 cl, 6 dwg, 8 ex, 2 tbl
ultilayer aluminium sheet for flux-free high temperature brazing in controlled atmosphere // 2642245
FIELD: metallurgy.SUBSTANCE: multi-layer sheet for flux-free high temperature brazing comprises an aluminium alloy core coated with intermediate layer of aluminium alloy, and solder of aluminium alloy applied on the intermediate layer. The core is made of 3XXX aluminium alloy containing, wt %: Mn<2.0, Cu≤1.2, Fe≤1.0, Si≤1.0, Ti≤0.2, Mg≤2.5, Zr, Cr, V and/or Sc in total ≤0.2, the rest is Al and unavoidable impurities. The intermediate layer is made of aluminium alloy containing, wt %: Mg 0.2-2.5, Mn <2.0, Cu≤1.2, Fe≤1.0, Si≤1.0, Ti≤0.2, Zn≤6, Sn≤0.1, In≤0.1, Zr, Cr, V and/or Sc in total ≤0.2, the rest is Al and unavoidable impurities. The solder is made of an aluminium alloy containing, wt %: Si 5-14, Mg<0.02, Bi 0.05-0.2, Fe≤0.8, Zn≤6, Sn≤0.1, In≤0.1, Cu≤0.3, Mn≤0.15, Sr≤0.05, the rest is Al and unavoidable impurities. The core material and the intermediate layer have higher melting point than the solder, and the intermediate layer is protective relative to the core. The total thickness of the cladding layer consisting of the intermediate layer and solder layer with respect to total sheet thickness is 3-30%. Soldering can be carried out in inert or reducing atmosphere without necessity of for applying the flux.EFFECT: possibility for soldering complex designs with corrosion potential.16 cl, 2 tbl

Heat exchange pipe, boiler and steam turbine device // 2641765
FIELD: heating system.SUBSTANCE: inner part of the furnace chamber pipe has the supercritical pipe pressure and contains the grooves (36) on the inner peripheral surface with spiral shape to the pipe axis direction; and ribs (37), protruding inwards radially through the grooves (36), while in cross-section along the pipe axis direction, when the width (mm) of grooves (36) in the direction of the pipe axis is specified as Wg, height (mm) of ribs (37) in the radial direction is specified as Hr and the external pipe diameter (mm) is specified as D, the width Wg (mm) of grooves (36), Hr height (mm) of ribs (37) and the external pipe diameter D (mm) meet the ratio "Wg/(Hr*D)>0.40".EFFECT: increased heat transfer at supercritical pressure.18 cl, 15 dwg
Fixing gasket device of heat exchanger plate, gasket device for heat exchanger plate, heat exchanger plate and unit of heat exchanger plate // 2641420
FIELD: construction.SUBSTANCE: fixing device (52, 90), gasket device (6, 88), plate (4) of the heat exchanger and unit (2) are offered. The fastening device is adapted to engage region (26, 28) of the edge of the heat exchanger plate (4) to secure gasket (50) to first side (8) of this plate. It comprises a first connecting element (54, 92), a second connecting element (56, 94) and a bridge (58, 96). First portion (60) of the first connecting element is adapted to engage with the gasket, and second portion (64) of the first connecting element is engaged with the jumper. First part (62) of the second connecting element is adapted to engage with the gasket, and second part (66) of the second connecting element is engaged with the jumper. The fixing device additionally contains a petal (74), located between the first and second connecting elements, with connecting part (76) of petal is engaged with the jumper, and the petal is made passing from the jumper in the direction of the gasket. The fixing device differs in that the petal has a width that varies along its length, with the length by the width of the petal is parallel to the length of jumpers, gasket device, heat exchanger plate and node.EFFECT: increased reliability.11 cl, 9 dwg

Working vehicle (versions) // 2641324
FIELD: heating system.SUBSTANCE: working vehicle has a base, a support hinged to the base for rotation relative to the base about the first rotation axis between the first reference position and the second reference position, and a heat exchanger. The heat exchanger is hinged to the support for rotation relative to the support about the second rotation axis between the first position of the heat exchanger and the second position of the heat exchanger.EFFECT: increased efficiency of the heat exchanger.20 cl, 15 dwg

Intensive steam condenser with contrast and gradient wetting // 2640888
FIELD: heating system.SUBSTANCE: intensive steam condenser with a contrast and gradient wetting is made in the form of a cooled cylinder, on the outer surface of which alternating transverse annular strips with hydrophobic coating with a gradient wetting angle and strips with hydrophilic coating are applied. Moreover, the wetting angle of the surface with the hydrophobic coating decreases from the line of the maximum value of the wetting angle to the line of the minimum value of the wetting angle.EFFECT: invention allows to increase the intensity of condensation due to the application of special coatings with gradient wetting, and due to the reduction in the hydraulic resistance during the flow of a two-phase flow along the condensation surface.3 dwg

Flat efficient condenser-separator for microgravitation and transport applications // 2640887
FIELD: physics.SUBSTANCE: according to the invention, the condenser and the separator are made in the form of a flat cooled micro- or mini-channel of a height of H<lσ, where lσ - the capillary fluid constant, and a capillary slit shutter is formed on the side and end walls of the separator, along the line of intersection with the plane of the longitudinal section, which is a narrow flat slit gap.EFFECT: increasing the cooling efficiency and simplifying the construction of the condenser-separator with a reduction in the mass and dimensions of the device.3 dwg

Heat-transfer tube and cracking furnace with usage of heat-transfer tube // 2640876
FIELD: heating system.SUBSTANCE: heat-transfer tube comprises a curled partition located on the inner wall of the tube, wherein the curled partition extends helically along the axial direction of heat-transfer tube. The heat-transfer tube is fitted with a non-continuous concave, extending from one end to the other end of curved partition along the axial direction of heat-transfer tube.EFFECT: heat transfer-tube and the cracking furnace according to the present disclosure have a good heat transfer effect and a low pressure loss.13 cl, 11 dwg

Heat exchange module and method of its assembly // 2640856
FIELD: heating system.SUBSTANCE: heat exchange module characterized in that it comprises elements forming a heating surface and a heating element having contact with the elements forming the heating surface. Elements that make up the heating surface are made in the form of extruded metal panels that have converted to opposite sides external and internal surfaces and side edges, made from one side in the form of a projection, and from the other side in the form of groove that when docking form a lock for connection of extruded metal panels and formation of heat exchange module. Wherein, at least one edge of the heat exchanger module perpendicular to compounds of extruded metal panels, is incurved, and heating element is laid in respective channels or anchorages, performed on the internal surface of the extruded metal panels forming a heating surface.EFFECT: increasing the efficiency of heat exchange and simplifying the process of assembling the heat exchange module.9 cl, 3 dwg

Heat exchanger and heat source block // 2640458
FIELD: heating system.SUBSTANCE: heat exchanger comprises at least one heat exchanger module (100). The heat exchanger module (100) comprises two heat exchange units (10 and 20) which are aligned with each other in the opposite orientation. At least one of the two heat exchanger blocks (10 and 20) bent in such a way that the angle between two adjacent edges (c and d) on at least one end of two heat exchanger blocks (10 and 20) is less than the angle between the main parts (12 and 22) two blocks (heat-exchange 10 and 20).EFFECT: surface of heat exchanger increases.22 cl, 7 dwg

Heater of liquid and gaseous media // 2640307
FIELD: power industry.SUBSTANCE: heater of liquid or gaseous media comprises a chimney and a housing in which a heat exchanger in the form of U-shaped tubes with the inlet and outlet of heated product and a heat generator, equipped with an outlet flange and including a burner device, a flame tube and a batch of smoke tubes, a common lens fire tube compensator and a second removable heat exchanger located in the housing symmetrically with the first heat exchanger relative to the heat generator, are arranged. Each of the heat exchangers is fixed to the housing through a common flange provided with full-flow inlet and outlet nozzles. The batch of smoke tubes of heat generator is connected to the output flange through a common lens fire tubes compensator.EFFECT: increase the convenience of its maintenance by increasing the heat exchange surface and maximizing the use of heat flow from the burner device, expanding the arsenal of funds of a similar purpose.5 cl, 3 dwg

Heat exchanger // 2640263
FIELD: heating system.SUBSTANCE: heat exchanger contains at least one welded heat exchange module, made of gas elements, using thin-sheeted plates, in particular with the ribbing, and of installed between them the liquid elements, executed in the form of metal framework. The heat exchanger is made either welded or from separate modules.EFFECT: invention improves the heat exchanger efficiency due to increase of the heat exchange intensity between elements, using the fluids direct contact with the plates external surfaces of adjacent gas elements, as well as using the labyrinth parts in the gas elements and internal partitions in the cavities of the fluid elements, the invention allows to raise the heat exchanger operation reliability through the proposed strengthened heat exchange modules elements structures.15 cl, 5 dwg

Radial-tube heat-mass-exchange apparatus // 2640139
FIELD: heating system.SUBSTANCE: heat-mass-exchange apparatus includes a housing with fluid inlet/outlet connections in which one or more adjacent units are installed consisting of vertical heat-mass-exchange elements in contact by turbulent projections forming an annular series around the vertical axis of the housing, forming the peripheral and central distribution manifolds in which the partitions are placed that provide a turn of the radial flow of fluid during the transition between units. The walls of the heat-mass-exchange elements are connected by one horizontal weld joint located on the lateral surface or in the rear part, wherein the front and back parts of the heat-mass-exchange element have an elliptical shape in cross section. When the heat-mass-exchange apparatus is operated, the flow of one fluid passes in the axial direction, flowing heat-mass-exchange elements, the front and/or rear parts of which have a close to perfect hydrodynamic shape. The flow of the other fluid flows around the heat-mass-exchange elements in a radial direction, first from the periphery to the center, and then back.EFFECT: lowering the hydraulic resistance and increasing the reliability of the apparatus.7 cl, 2 dwg
ethod for cleaning internal surface of boiler // 2640134
FIELD: chemistry.SUBSTANCE: invention can be used in the operational cleaning of the internal surfaces of small and medium-pressure water boilers and steam boilers not exceeding 15 atm from the deposits, including high-temperature silicates, calcium, and magnesium phosphates, and insoluble or hardly soluble in mineral acids. Water prepared is used as a cleaning solution after Na-cationization with a total alkalinity of 4-6 mg*ekv/dm3, and a total hardness of 0.002 mg*EQ/dm3 at a temperature of 60-90°C with pH of 7.0 and 8.5, with the addition of a complexing agent - "Trilon B" - disodium salt of ethylenediaminetetraacetic acid and phosphate, the concentration of which in the boiler water is raised to 50-168 mg/dm3 of disodium salt of ethylenediaminetetraacetic acid, and 10-20 mg/dm3 of PO43, respectively. The dosage of "Trilon B" and phosphate is carried out by two independent pumps into the suction header of the boiler feed pump. Boiler purge is carried out according to the constant analytical control, maintains the level of hardness and salt content of the boiler water in accordance with the technical requirements of the boiler.EFFECT: improving the environmental characteristics of the cleaning process by eliminating the formation of aggressive wastewater, cleaning during the operation of the equipment.3 cl, 1 tbl

Heat-transfer device for cooling electronic components // 2639635
FIELD: heating system.SUBSTANCE: device can be used mainly in the cooling systems of electronic components, such as microprocessors, CPUs, chips, memory modules in computers, etc., including those having two or more components with varying capacity, requiring cooling, spaced from each other and from heat sink: air, liquid or another heat exchanger. The heat-transfer device for cooling electronic components comprises a cooling circuit in the form of a loop heat pipe, includes an evaporator with capillary structure inside, which provides thermal contact with the most powerful heat source, a capacitor communicating through a hollow steam pipe and condensate pipe with the evaporator, that differs in the fact that the device contains one capacitor connected with external heat exchanger fulfilling the role of a heat sink and carrying the heat received from all heat sources outwards, and the condensate pipe contains at least one heat exchanger made in the form of a condensate pipe connected with a contact plate that provides thermal contact with a less powerful heat source located directly between the evaporator and the condenser.EFFECT: increased operation resistance of the device, simplified manufacture and assembly, reduced labour intensity, improved heat transfer efficiency simultaneously from two or more electronic components, which dissipate heat flows, varying up to 10 times or more, and are arbitrarily located in space, possibility of placing it in space-limited environment.14 cl, 10 dwg

Tube-and-shell heat exchanger with curved tubes // 2639439
FIELD: heating system.SUBSTANCE: in the heat exchanger, consisting of a housing, tube grids, partitions and tubes, the tubes are installed with a preliminary deflection. Preliminary deflection is carried out by means of displacing holes for tubes in the partitions or by means of displacing the partitions by displacement mechanism, and the partitions are installed with the possibility of displacement in the direction of preliminary displacement. The partitions in the middle part of the heat exchanger are rigidly fixed with the displacement of the holes for the tubes, and the housing can be made with a deflection. The remaining partitions are installed with the possibility of further displacement in the direction of the preliminary displacement of the tubes to compensate for their elongation at temperature deformation. The preliminary deflection of the tubes is carried out during the assembly of the heat exchanger from straight tubes which are bent within elastic deformation.EFFECT: ensuring compensation of tube elongation at temperature deformation.6 cl, 5 dwg
Solution for deleting deposits of different nature // 2639433
FIELD: chemistry.SUBSTANCE: solution for purifying the surface from the deposits of different nature, containing hydrogen peroxide, chelating agent, water-soluble calixarene and water in the following ratio, wt %: hydrogen peroxide 2-90, chelating agent 3-30, water-soluble calixarene 0.01-10, water - the rest, wherein it contains the chelating agent in the form of polybasic organic acids, their sodium salts or derivatives of phosphorous acids. Also, a concentrated component for preparing the said solution, a method for preparing a solution, and methods for purifying the surface from deposits of different nature are proposed.EFFECT: increasing the degree of purification from sediments of different nature with a simultaneous decrease in the aggressiveness of the solution to structural materials.19 cl, 2 tbl

Heat exchanger inlet chamber // 2639423
FIELD: machine engineering.SUBSTANCE: distribution screen located in the gap between the casing and the tube bundle in the form of a shell with grooves of variable width, increasing proportionally to the distance from the inlet branch pipe.EFFECT: increased reliability of a thick-walled heat exchanger by equalizing the flow rate, reducing the tubes vibration without increasing the metal capacity.2 dwg

Thermal pipe with electrohydrodynamic generator // 2638708
FIELD: heating system.SUBSTANCE: heat pipe with an electrohydrodynamic generator, in which a partition 17 is installed inside the steam channel 4 at the level of nozzles 8. Also outside the case two metal containers 13 are installed, inside of each of which one ionizing electrode and one collector of charges are installed. Wherein, steam supply ducts 18 and outlet ducts 20 are additionally installed above and below the partition 17, and vortex chambers 19 are installed between the upper ends of condensate lines 7 and the nozzles 8. Moreover, the steam supply ducts 18 are installed tangentially relative to the vortex chambers 19, which allows for more efficient spraying of the condensate, thereby increasing the distance overcome by the drops between ionizing electrodes and collectors 6 in metal containers 13.EFFECT: invention makes it possible to raise the efficiency of electrostatic generator.2 cl, 2 dwg
Combined system of cooling of server rack elements (versions) // 2638414
FIELD: heating system.SUBSTANCE: combined system of cooling of heat-producing server rack elements, which includes at least one inner case with at least one heat-producing element placed in it, contains at least one cooling circuit in the form of contour heat pipe, including placed in the internal case radiator contacting thermally with heat-producing element, evaporator, installed at the base of the radiator, condenser, located on the outside of the inner case, associated by steam pipe and condensate pipe with the evaporator, liquid tire associated with condenser, while the condenser is designed as two U-shaped parallel plots of contour heat pipes, finned with radiator slats, assembled-thermally contacting with liquid tire using clamp mechanism made of extruded aluminium and mounted outside the case, wherein the clamp mechanism is executed in the form of U-shaped spring element with contour pipe condenser put in it, still associated with the case, whose spring strips are profiled for pressure radiator slats of condenser to liquid tire, and extruded aluminium ruler with the axle holes and milled samples, welded to the back wall of tire, while in ruler samples spring-loaded cams are made, fixed by axles, communicating by their ledges with both ends of spring strips of spring element, and outer spring strips plane, adjacent to the end.EFFECT: widest possible universalization, which provides cooling the components of any plate, increasing the ease of maintenance, preventive maintenance and repair of a single blade and rack as a whole, ensuring manufacturability, low cost and ease of execution due to the widespread use of extruded aluminium profile, ensuring reliable, simple, automatic thermal contact of contour radiator heat pipe and liquid tire, increasing the cooling efficiency.23 cl, 11 dwg

Heat-exchange unit for vehicles // 2638247
FIELD: engines and pumps.SUBSTANCE: heat-exchange unit includes a first channel for flow of cooling liquid of the engine, the second flow channel for engine oil, third flow channel for transmission oil and several plates that are shared by the first, second and third flow channels. The first flow channel is configured to allow the engine coolant to perform heat exchange with both the engine oil and the gear oil through the plates. The second flow channel is placed in an identical layer with the third flow channel. The first flow channel is placed in a layer different from the layer of the second and third flow channel. A third flow channel is located on the side of the inlet, and the second flow channel is located on a side issue in the engine coolant flow direction in the first flowing channel.EFFECT: increase in the level of temperature stability.4 cl, 10 dwg

ethod for manufacturing thermal pipe with aluminium housing and water as heat carrier // 2638233
FIELD: heating system.SUBSTANCE: method for manufacturing a thermal pipe with aluminium housing and water as a heat carried comprises coating the whole inner surface of the housing with a water-inert copper layer, vacuumizing the housing, filling the housing with the necessary amount of water and sealing the housing. In order to expand the functionality of the method, coating of the inner surface of the housing with copper is carried out by a galvanic method in two stages with deposition current densities of 0.5-3 A/dm2 at the first stage and 40-70 A/dm2 at the second stage.EFFECT: extended range of technical facilities.5 dwg

Intensifying heat exchange surface for extension of dynamic meniscus // 2637802
FIELD: heating system.SUBSTANCE: on longitudinal ribs of intensifying micro-ribbed heat exchange surfaces perform many longitudinal microgrooves, asymmetrically located relative to the plane of longitudinal ribs and having different widths. The width of the micro-groove is the smaller, the closer it is to the apex of the rib.EFFECT: increasing the efficiency of evaporation by creating a micro-ribbed surface with a large area of three-phase contact lines.5 dwg

Circulating water supply system // 2637341
FIELD: heating system.SUBSTANCE: circulating water supply system contains a ventilator cooling tower, at least one circulating pump connected via pipelines to an inlet with a cooling water reservoir located at the bottom of the cooling tower, and an outlet with pressure pipelines for supplying cooled water, and the pool is provided with an overflow and discharge device, while next to the ventilator cooling tower in a separate building, installed on reinforced concrete supports, there is a machine room in which the circulation pump or circulating pumps and control means, filtering room, in which filters for catching mechanical impurities are installed, mounted on pressure pipelines of circulating pumps, inhibitory room for the supply of a corrosion inhibitor in water supply pipelines, and an electrical substation, and between the ventilator cooling tower and the machine room oil separators are located on reinforced concrete supports, connected to pipelines supplying water to the ventilator cooling tower, with all pipelines are located above the ground on reinforced concrete supports, and the ventilator cooling tower is made with a rectangular cross-sectional body formed by vertical and horizontal metal beams and side walls made of facing panels, on top of the body at least one fan is installed that contains a diffuser of the fan with an impeller mounted therein with an its rotation drive, and in the body under each of the fans, successively from top to bottom, drip catchers are installed, a system of water spray nozzles, connected to water distributing system, sprinklers and a cooling water reservoir, made in the form of a sump for collecting water, ventilator cooling towers are installed on a reinforced concrete piles, installed evenly under the body. Vertical metal beams are supported on a coaxial post mounted on each pile, the height of which is not less than the height of the side walls of the sump, the horizontal metal beams forming the lower casing of the body are supported on the upper end of the reinforced concrete piles around the posts installed on them and fixed to the latter with the formation of a horizontal base under the sump bottom, wherein along the perimeter of the body, the middle section of horizontal metal beams is connected above the ground with the bottom part of piles by bracing.EFFECT: reduction of energy consumption for cooling of circulating water.2 cl, 5 dwg

Compositions with sodium acetate trihydrate // 2637337
FIELD: chemistry.SUBSTANCE: composition based on sodium acetate trihydrate (SAT) is provided as a source of heat, which is capable of heating the heated material contained in the device. The formulation contains SAT, a kinetic inhibitor, and a solvent. SAT is able to emit heat upon crystallization of a supercooled liquid. The kinetic inhibitor is designed to reduce the likelihood of a spontaneous or unintentional SAT phase transition. The kinetic inhibitor is selected from sodium salt of carboxymethylcellulose, gelatin, ethyl cellulose, polyethylene glycol, xanthan gum, glycerol, urea, polysorbate 20, polysorbate 80, polyacrylic acid, sodium pyrophosphate, polyacrylamide, pullulan, polyvinyl alcohol, and polyvinyl acetate.EFFECT: increasing the stability of the composition and reducing the possibility of a supercooled liquid to spontaneous crystallization.13 cl, 5 dwg, 1 tbl, 8 ex
Cooling tower fan // 2636594
FIELD: power industry.SUBSTANCE: cooling tower fan includes a diffuser, body of which is made as a convergent-divergent shell from the glass material, on the outer surface of the body there are made intersecting stiffening ribs, and a bladed wheel is installed in the diffuser, which shaft is connected to the blade wheel rotary drive and disposed coaxially with the convergent-divergent shell, intersecting stiffening ribs are made hollow with a trapezoidal cross section and are arranged vertically and horizontally to form the cells between them, the convergent-divergent shell is formed as a body of revolution. The generatrices surfaces of the convergent-divergent shell parts are formed by the circle arc, gradually coupled with the cylindrical part generatrix, located between the generatrices of the convergent-divergent parts. The radius of the circle arc R1 of the shell convergent part is from 0.32 to 0.40 of the shell height H1, the radius of the circular arc R2 of the shell divergent part is from 0.45 to 0.50 of the shell height H1, the height H2 of the cylindrical part is from 0.35 to 0.40 of the shell height H1, the height H3 of the convergent part is from 0.32 to 0.35 of the shell height H1, the height H4 of the divergent part is from 0.25 to 0.35 of H1 the shell height, and the bladed wheel is located coaxially to the cylindrical part of the diffuser at the distance S from the diffuser shell inlet section of 0.45 to 0.5 from the shell height H1, wherein the convergent-divergent shell is mounted on the support ring, fixed on the metal frame, made in the form of a regular polygon, and the blade wheel drive is mounted on the fixed, relatively, to the metal frame beams intersecting along the shell axis, wherein the drive motor is mounted on the one of the beams end, and the reducing gear, coupled with the input shaft to the motor shaft, mounted in the place of the beams intersection at the reducing gear output shaft, coaxial with the axis of the shell, the cooling tower fan impeller is installed.EFFECT: aerodynamic drag reduction of the cooling tower fan diffuser flowing part, while maintaining the required stiffness of the diffusor structure.5 dwg
Cooling tower sprinkler unit // 2636593
FIELD: agriculture.SUBSTANCE: cooling tower sprinkler unit comprises a packet of corrugated sheets from polymer material with parallel corrugations, the adjacent corrugated sheets of sprinkler are fixed to each other to form the channels by corrugations, wherein input and output channels made in the form of hexagonal prisms are formed by the corrugations, while channels made in the form of quadrangular prisms are formed between them by corrugations, wherein the latter are directly connected with the input and output channels and are offset relative to them so that each input and output channel is connected with two adjacent channels, made in the form of quadrangular prism, while U-shaped, sinusoidal or trapezoidal corrugations of equal width and depth positioned perpendicular are formed at the side planes of these channels.EFFECT: increased intensity of heat-and-mass transfer due to elimination of straight flow of liquid and gas phases in the sprinkler channels.2 cl, 2 dwg

Heat exchanger // 2636358
FIELD: heating system.SUBSTANCE: invention relates to waste gas cooler or a charge air cooler comprising a plate package (2) consisting of several elongated plate pairs (32). Accordingly, two plates (18, 18') connected to each other form a second working medium channel (4), and a first working medium channel (30) is formed between the two pairs of plates, wherein the first working medium channel (30) is surrounded by two second working medium channels (4). Each second working medium channel (4) is connected to at least one collecting channel (11, 12) of the cooling agent.EFFECT: increase of heat transfer.16 cl, 21 dwg

Coiled heat exchanger with set of inlets and method of adjustment of heat exchanger's heating surfaces // 2636287
FIELD: machine engineering.SUBSTANCE: invention relates to the heat exchanger (1), containing a set of inlets (30-36), each one of which is connected to at least one coherent pipe (20) of the heat exchanger (1), so that at least one flow (S) of the first medium, as well as one flow (S') of the second medium can be guided through at least one coherent inlet (30, 32, 33, 35, 36) to a respective coherent at least one pipe (20), while the heat exchanger (1) has a case (10), which surrounds the space (11) of the case in which the specified pipes (20) are located, so that, in particular, the flow (S'") of the medium passing through the space (11) of the case enters into indirect heat exchange with the medium flow (S, S') passing in the corresponding pipe (20), and the specified pipes (20) are wound around the central pipe (12) of the heat exchanger (1). According to the invention it is provided that each of the pipes (20) agreed with the appropriate inlet (30-36) sets the heating surface and the heat exchanger (1) has at least one switching means (100), which is intended to switch back and forth at least one of the inlets (30) between at least one first operating condition and one second operating condition, so that the flow (S) of the first medium can be directed in the first operating condition and the flow (S') of the second medium -in the second operating condition through at least one inlet (30) to at least one agreed pipe (20), with providing the large heating surface for the flow (S) of the first medium in the first operating condition and respectively, the smaller heating surface for the flow of the second medium and with providing the large heating surface for the flow (S') of the second medium in the second operating condition, and respectively, the smaller heating surface for the flow (S) of the first medium.EFFECT: increase the efficiency.11 cl, 2 dwg
Kochetov mechanical-draft tower // 2636277
FIELD: heating system.SUBSTANCE: mechanical-draft tower contains a body, a sprayer, a liquid collection tank and a fan, body consists of two parts: the upper part including sprinkler droplet eliminator between which sprayer collector with whole flare atomizers, and the bottom part of water sump tank for cooled water collection with a fan installed on it. The body is made of fine-sheeted stainless steel, and in water sump tank there is a diffuser, which represents a part of the body and connected to a ventilator, made with a plastic impeller and multiple-speed motor, which allows, in the process of work, depending on weather conditions, to modify the performance of cooling tower due to changes in air flow, and the sprinkler contains tubular elements made of thermoplastic material with lattice wall folded by layers parallel to each other. On the ends tubular elements are welded together, tubular elements are made with triangular cross-section and between each layer of tubular elements across the tubular elements along each of their end strip of thermoplastic material is padded, welded with tubular elements in places of their contact with the strip. During the welding process, end parts of tubular elements and strips laid between them are fused and during fusing process solid end walls of block are formed. The cavities of each tubular elements and the intertubular space are filled with hollow polymer spheres. The diameter of spheres is 5÷10% more than the maximum size of the grid wall cell of tubular elements, each atomizer of sprayer manifold contains a hollow body with nozzle and the central core, the body is made with a channel for supplying liquid and contains coaxially, rigidly associated sleeve with nozzle fixed in its lower part, made in the form of a cylindrical two-step sleeve, the upper cylindrical stage of which are connected by threaded connection with a coaxial with it central core, having central hole and installed with an annular gap relative to internal surface of cylindrical sleeve. Said annular gap is communicated with, at least, three radial channels made in said two-stage sleeve to communicate with annular cavity formed by sleeve inner surface and outer surface of upper cylindrical stage. Annular cavity is connected to the body of channel for the liquid supply, sprayer is rigidly attached to the central core, in its lower part, made in the form of a truncated cone, coaxial to central core hole, and attached by its upper base to the base of central core cylinder, and divider is attached to the lower base of truncated cone, through at least three spokes, which is made in the form of a round end plate whose edges are deflected towards annular gap, and on the outer side surface of truncated cone there are spiral grooves, in divider, which is attached to the lower base of truncated cone by at least three spokes and is made in the form of rounded plate, whose edges are deflected towards annular gap, throttle opening is made axially to central hole of central core.EFFECT: improving the performance of cooling tower.4 dwg
Circulating water supply system // 2636276
FIELD: heating system.SUBSTANCE: circulation water supply system provides cooling towers, interconnected by hydraulic circuits of preparing and consuming water, cooling towers have separate hydraulic circuits of preparing and consuming water, each of the towers contains body, in bottom of which at least two tanks to collect water, are placed which are interconnected by expending pipe, providing hydraulic independence of circuits of working water preparation and its consumption. One tank is connected to the pump, which supplies cooled in a cooling tower water to consumer, which again goes through a valve on the pipeline to the second tank, from which heated water through the filter and valve is supplied through pipeline to manifold with injectors located in the upper part of cooling tower body, and to the part between the filter and the valve control system of filter hydraulic resistance is installed, consisting of a pressure gauge and valve, each injector contains a hollow shell with a nozzle and a central core, shell is made with conduit for liquid inlet and includes coaxial, tightly associated with it sleeve, with a nozzle fixed at the bottom, manufactured in the form of a two-stage cylindrical sleeve, upper cylindrical stage of which is connected through the screw connection with coaxial to it central core having central hole, and installed with the annular gap relative to the internal surface of cylindrical sleeve. Said annular gap is communicated with, at least, three radial channels made in said two-stage sleeve to communicate with annular cavity formed by sleeve inner surface and outer surface of upper cylindrical stage. Annular cavity is connected to the body for the liquid supply to the central core, in its lower part sprayer is rigidly attached, made in the form of a truncated cone, coaxial to central core hole, and attached by its upper base to the base of the central core cylinder, and to the lower base of the truncated cone, through at least three spokes, divider is attached, which is made in the form of a round face plate whose edges are deflected towards annular gap, and on the outer side surface of truncated cone there are spiral grooves, and at sparger, which is attached to the lower base of truncated cone by at least three spokes and is made in the shape of a round face plate, edges are deflected towards annular gap, throttle opening is made axially to central hole of central core. External diffuser is coaxially attached to the sleeve, tightly associated with injector body, in its bottom part, and to the lower base of sprayer truncated cone, tightly attached to the central core, in its lower part. On the outer side surface of the truncated cone there are screw grooves, the internal perforated diffuser is coaxially attached in such a way that the output sections of the external and internal diffusers lie in one plane.EFFECT: improving the performance of cooling tower.3 dwg

Active management of underwater coolers // 2636073
FIELD: technological processes.SUBSTANCE: system comprises the input (A) and the output (B), as well as at least a first cooler and a second cooler. The first cooler and the second cooler are connected to each other in series. The cooling system additionally comprises at least a third cooler connected in parallel with the first cooler and the second cooler. The cooling system additionally comprises at least one flow controller for guiding the flow through at least one cooler. At least one of the coolers comprises a bypass circuit and/or a recirculation loop. The coolers comprise temperature control devices and sensors allowing the operator to monitor the cooling system and the coolers and allowing the entire flow or part of the flow to be bypassed through the bypass circuit.EFFECT: increasing the flow cooling efficiency and ensuring that cooled flow temperature is maintained in the specified value range.12 cl, 6 dwg
ethod and plant for natural gas heating // 2635960
FIELD: oil and gas industry.SUBSTANCE: invention presents the method and the plant for heating natural gas, the method comprising the following stages: a) supply of natural gas which has a temperature of from -10°C to 50°C and at a pressure of at least 30 bar, from the natural gas supply pipe to the first system of heat exchanger cavities, b) supply of heating means (heat carrier) having a temperature in the range from 30°C to 160°C in the second system of cavities of the heat exchanger, wherein the first and second system of cavities are hermetically isolated from each other and from the environment, c) heating natural gas in the first system of cavities to a temperature from 20°C to 150°C by means of the heat carrier in the second system of cavities, the heat exchanger used is a plate heat exchanger including at least two pairs of heat exchange plates. Each pair of heat exchange plates is completely welded at least along their outer edges, d) withdrawing heated natural gas from the first cavity system to at least one further processing stage.EFFECT: increase in efficiency and reduction of the heat exchanger dimensions, so that lower costs can be achieved.9 cl

ixing condenser // 2635752
FIELD: heating system.SUBSTANCE: steam condensing device including at least two compartments (11, 12), with the first chamber (11) acting as a condensation compartment of a co-directional flow, and the second chamber acting as a counterflow condensate (12), at that the condensation compartment (11) includes a coolant distribution system (115) with a plurality of channels formed over a plurality of film carriers having regions of planar surfaces to support the coolant films.EFFECT: increased efficiency of the cooling system while reducing the dimensions of mixing condenser.8 cl, 9 dwg

Heat energy accumulation system, containing integrated refrigeration-heating installation, and method for use of such system // 2635737
FIELD: heating system.SUBSTANCE: invention relates to a thermal energy storage system comprising an energy accumulator (2) having a vertical temperature gradient and an internal combined refrigeration-heating machine (15). This machine is adapted to deduce the energy corresponding to the first temperature from the energy accumulator with the simultaneous return of energy corresponding to, after heating, the second higher temperature and the energy corresponding to, after cooling, the third, lower temperature. The invention also relates to a method for using thermal energy storage system.EFFECT: improvement of a system.10 cl, 1 dwg

Water cooling unit of water circulation system // 2635727
FIELD: heating system.SUBSTANCE: water cooling unit of the water circulation system contains a fan cooling tower, a catchment basin. In the cooling tower case, a water trap, a water distribution manifold with water spray nozzles and a sprinkler are arranged in series from top to bottom, and a fan is installed on top of the shell, made with a confusor-diffusor shell made of fiberglass. On the outer surface of the shell, hollow intersecting stiffeners are arranged vertically and horizontally with the formation of cells between them, and the shovel wheel installed therein, the shaft of which is connected to the rotation drive. The catchment basin is made of reinforced concrete circular in cross section, water distribution riser is located in the center of the pool made hollow of reinforced concrete, the latter is connected to, at least, one water-supply conduit, passed along the bottom of the catchment area, wherein, at least, two cooling towers are additionally installed, all of the cooling tower are formed identical, are mounted on the bottom support of the catchment basin by means of reinforced concrete poles and arranged circumferentially around the water distribution riser, and water distribution riser top is connected by piping to the water distribution collector of each of the fan tower.EFFECT: ability to reduce energy costs for cooling the return water.2 dwg
Cooling tower sprinkler unit // 2635726
FIELD: agriculture.SUBSTANCE: cooling tower sprinkler unit comprises a packet of corrugated sheets from polymer material with parallel corrugations, the adjacent corrugated sheets of sprinkler are fixed to each other to form the channels by corrugations. The input and output channels made in the form of hexagonal prisms generated by corrugations are produced by corrugations, while three layers of channels are formed between them by corrugations. Two layers of channels are extreme and the middle layer of channels is positioned between them, channels of extreme layers are directly connected - one with the input channels and another with the output channels, while the channels of the middle layer are connected with the channels of extreme layers. Channels of extreme and middle layers are made in the form of quadrihedral prisms, each input channel and each output channel is connected with two adjacent channels of extreme layers, channels of middle layer are offset relative to the channels of extreme layers so that each channel of middle layers is connected on the input side and on the output side thereof with two adjacent channels of extreme layers, while U-shaped, sinusoidal or trapezoidal corrugations of equal width and depth positioned perpendicular are formed at the side planes of the channels of extreme and middle layers.EFFECT: increased intensity of heat-and-mass transfer due to elimination of straight flow of liquid and gas phases in the sprinkler channels.2 cl, 2 dwg
Efficient vapour condenser for microgravity conditions // 2635720
FIELD: ventilation.SUBSTANCE: vapour condenser containing a steam channel formed by the condensation surface, the condensation surface has a convex curved shape with an internal longitudinal edge on both sides of which cavities for condensate are formed, wherein R3>R2, where R3 is the radius of curvature of the condensation surface in the upper part of condenser channel; R2 is the radius of curvature of the condensation surface in the cavity.EFFECT: increase in the efficiency of condenser due to an increase in intensity of condensation and optimisation of two-phase flow stream.6 dwg

Heat exchanger with secondary folding // 2635673
FIELD: heating system.SUBSTANCE: each heat exchange element is made of a ribbed sheet having a plurality of hollow ribs to create an internal volume. At the same time, it has an inlet and an outlet and a hole. The flow divider is placed in the internal space between the intake manifold and the outlet line with internal vertices of the hollow fins in contact with the flow divider. The base element is connected above the opening of the inner volume. And the base element contains the input and output, placed with a fluid communication with the intake manifold and the exhaust line, respectively.EFFECT: technological possibilities are expanding and heat transfer between fluid flows is improved.20 cl, 15 dwg

Air-to-air heat exchanger // 2634652
FIELD: ventilation.SUBSTANCE: in the air-to-air heat exchanger (10) for ventilation systems, comprising direct parallel tubes (32) group (30), disposed in the cylindrical body (12) and the fan (14), located at the end of the cylindrical body (12), at that the fan (14) includes the inner ring (18) and the outer ring (20), the conveying flows of coolant in the opposite direction. The spaces of the outer ring (20) and the inner ring (18) are separated from each other by the cylindrical wall (22), the end parts (34) of the tubes (32) are bearded against each other, on the side, facing the fan (14) the cylindrical walls (22) are enclosed in the ring end (42), and on the opposite side are enclosed into the end (44) of the cylindrical tube (46), and which are tapered to the middle sections (36) between its end sections (34), between which there are the gaps (40) inside the group (30), wherein the inner wall (24) of the body (12) in the area of the middle sections (36) is equipped with the insulating insert (50) in the form of the sleeve or shell, which lines and tapers the inner diameter of the body (12).EFFECT: increase of the heating system performance factor.10 cl, 4 dwg

Radiator // 2634167
FIELD: machine engineering.SUBSTANCE: radiator is described, made of thermally conductive material containing a heat absorbing surface in contact with the heat-generating surface of the electronic component and a heat-distributing surface. The heat-distributing surface is parallel ribs that are perpendicular to the heat absorbing surface of the radiator. The ribs form channels for the passage of cooling medium. Each channel wall alternates with flat and concave surfaces in such a way that the cross section of the channel changes along the whole path of cooling medium movement.EFFECT: intensification of heat transfer from the radiator to the cooling medium.6 cl, 8 dwg

Heat exchanger working on og // 2633562
FIELD: heating system.SUBSTANCE: heat exchanger working on OG (1), in particular for use in a vehicle, comprising at least one first fluid guiding a first flow channel (2), whose ends are arranged in a tube board (3), a casing (4) surrounding the first flow channel (2). The casing (4) has an inlet and an outlet opening and forms a second flow passage (10) for the second fluid. The second fluid flows through the casing (4) and the first flow channel (2) flows around it, the tube boards (3) are installed in the casing (4) so that the first flow channel (2) is sealed from the second flow channel (10), the first A diffuser (5.1) supplying the first fluid to the first flow channel (2) and a second diffuser (5.2) discharging it from it. The heat exchanger (1) comprises at least one first shielding element (6.1) with at least one first passage (7) and with at least one first distal element (8) that is put on the tube plate (3) with the side facing away from the first flow channel (2).EFFECT: prevention of boiling processes and elimination of formation or transfer of condensate from the outlet side to the suction zone of the heat exchanger engine.12 cl, 6 dwg

Air-liquid heat exchanger and engine system // 2633280
FIELD: engine devices and pumps.SUBSTANCE: air-liquid heat exchanger comprising a tubular-ribbed unit (15, 115) of trapezoidal shape comprising a number of air passages through which the air to be cooled passes. The trapezoidal shape of the heat exchanger is obtained due to the use of air channels nonuniform in cross-section which are narrowed from the side of air intake to the side of air discharge. By using such air channels of nonuniform flow cross-sections, the heat exchanger can be optimized with respect to the body size, pressure drop and heat transfer to suit the particular application task.EFFECT: increased heat exchanger efficiency.10 cl, 17 dwg

Operating method of heat exchanger and hvac plant for method implementation // 2632070
FIELD: heating system.SUBSTANCE: invention subject is the operating method of the heat exchanger (15), through which the coolant flows on the primary side, which enters into the heat exchanger (15) with the first temperature (T1, TWein) and exits from it with the second temperature (T2, TWaus), on the secondary side, in case of the heating it gives the heat flow to the secondary medium, passing through the heat exchanger (15) , and in the case of the cooling selects the heat flow from the secondary medium, which enters the heat exchanger (15) with the third temperature (T3, TLein) and again comes out of it with the fourth temperature (T4, TLaus). The heat exchanger (15) can transmit the maximum heat flow . At least three of four temperatures (TWein, TWaus, TLein, TLaus) and that the corresponding degree of heat exchanger (15) saturation is determined according to these measured temperatures, which is used to control its operation.EFFECT: simplified control.19 cl, 8 dwg

Self-cleaning shell-and-tube heat exchanger // 2631963
FIELD: electricity-producing industry.SUBSTANCE: turbulizing elements, that are designed as the lobes in the form of the propeller or of the wire spiraling, are fixedly attached to the metal rod or wire throughout the length at a distance from one another in the heat exchanger composed of the jacket, where the stack of the tubes that are linked to the tube sheets is located, and of the input and output nozzles of the tube medium Δ, of the turbulence promoters that are placed within every tube in axial alignment throughout the tube length and are representing the metal rod or wire. The ends of the rods or wires are attached to the tie bars that are tailed in among the shoulders that are rigidly attached to the tube sheets outer surface.EFFECT: heat-transfer process augmentation and scale formation rate reduction.5 dwg

ethod and device for heat energy transfer by materials, changing its physical state // 2631855
FIELD: heating system.SUBSTANCE: device is installed in contact with the exhaust gases (2) inside the enclosing chamber (22) or inside one or more pipes, related to the installation on which the manufacturing or auxiliary processes are carried out. The device contains at least two sections (4), each equipped with at least one heat exchange module (5), having the heat exchanger (6), which is at least partially in contact with the exhaust gases (2) for the purpose of heat energy exchanging. The first material (7) provided, changing its physical state, is located inside the mentioned heat exchanger (6). The provided extraction heat exchanger (8) is in contact with the mentioned first material (7), changing its physical state, equipped with the supply and recirculation pipes (9), in which the heat-carrying fluid (10) circulates. In addition, the displacement facilities (14, 15) are provided for conveying the heat-carrying fluid (10) and controlling of its flow rate for selective assignment for each section (4) of the heat flow values versions, extracted from the exaust gases (2) and participating in the heat exchange with the first material (7), changing its physical state.EFFECT: efficient extraction of the heat energy from the exhaust gases and supply of constant heat flow to the consumer.19 cl, 22 dwg

Thermosyphon heater with electrode electrolyte heater and integrated pump // 2630818
FIELD: machine engineering.SUBSTANCE: provided heater contains a sealed body 1 equipped with a delivery and a suction nozzles 9, 10 with return valves 8, electrodes 4 and terminals for supplying electric power. The thermosyphon heater is equipped with a piston 2 which airtightly splits the body on the lower part 3 with electrolyte solution 5 and the upper part 6 with fluid 7, and parallel horizontal electrodes 4 submerged in the electrolyte solution 5 and a heat exchanger 11 made in the form of a water jacket embracing the lower part of the body 1.EFFECT: expansion of the operating capabilities.1 dwg

System, device for condensate absorption control and method of condensed fluid excessive absorption suppression // 2630815
FIELD: machine engineering.SUBSTANCE: system may comprise a supercharged engine comprising a charge air cooler downstream of the compressor and an air intake port with a throttle between the intake manifold and the charge air cooler. The system may also comprise a main pipe connected in parallel with an air intake port between the intake manifold and the charge air cooler connected to the intake manifold downstream of the throttle, comprising a mixer positioned at an angle within 45 degrees from the vertical.EFFECT: prevented condensation of water, prevented water absorption at high enough speeds to cause misfiring.20 cl, 7 dwg
Complex electric generating heating device // 2630069
FIELD: heating system.SUBSTANCE: complex electro-generating heater that includes two pipes of the upper and lower collectors, vertical tubes of oval cross section connecting the cavities of the upper and lower collectors, the front and back rows of vertical rectangular plates opposite the vertical tubes of the oval section, covering them all over Their height, equipped with vertical slots, whose height is equal to the length of the vertical pipes, each of which is inserted a vertical rectangular thermoelectric transducer made of a dielectric material with high thermal conductivity and connected back-face end of its shell to the wall of the riser pipe, which is placed in the array elements of thermionic emission, which are paired wire segments, which are paired wire segments made of different metals M1 and M2, welded at the ends with each other in such a way that the wire segments themselves are parallel to each other, forming U-shaped rows, the extreme wire segments of each pair of U-shaped rows of thermoelectric converters are connected from below Between each other by jumpers, and on top of each pair of thermoelectric converters is connected to each other and to the output collectors via electric capacitors, and the output manifolds, in their own Are connected to a storage unit.EFFECT: ensuring reliable, durable and efficient operation.5 dwg
Heat transfer bay // 2629805
FIELD: heating system.SUBSTANCE: heat transfer bay comprises: two wafers and a frame that links two wafers. Two wafers and a frame form a platelike hollow bord; a capillary structure coating that is attached close to the chamber liner; and a chambered processing medium with the phase transfer. A frontier area part of one of the two wafers or a frame part work as a heat transfer bay evaporation zone and the other part of the bord work as a heat transfer bay condensation zone. The heat transfer bay has a greaten steam passage area, walkway clearance for the fluide medium reverse flow and heat passage area of the condensation zone and a decreased center-to- evaporation-zone-edge distance.EFFECT: heat transfer ability and heat flow rate increase.5 cl, 11 dwg
 
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