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Invention relates to heat engineering and can be used in domestic electric appliances equipped with a heating device. A liquid heating device intended for a domestic electric appliance having at least one liquid circulation pipe; with that, the pipe is equipped with swirlers of liquid circulating in the pipe internal volume, in which there are relief surfaces on the pipe inner wall; with that, the inner wall includes a heat exchange section capable of being operated together with heating devices, and relief surfaces are formed beyond the limits of the heat exchange section. |
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Heat pipe using tubular fibre-optic structures Invention relates to devices for removing heat from electronic components with high heat dissipation, particularly heat pipes, and can be used in the electronics industry. A heat pipe using tubular fibre-optic structures, the inner side surface of which is lined with tubular optical glass fibres, and the coolant used inside said pipe is a volatile liquid. Use of the volatile liquid (alcohol) as a coolant intensifies heat exchange in the heat pipe via phase transition, thereby creating conditions for controlling temperature of the cooled object. |
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Invention relates to electrical engineering, to dynamo-electric machines with a cooling system. Dynamo-electric machine (1) includes stator (2) and rotor (3). Winding system (4) is located in slots at least of stator (2). Basically, radial heat transfer is performed by means of heat tubes (5) to end surfaces (6) of stator (2). Each heat tube has evaporation zone (19) and condensation zone (7). Evaporation zone (19) is located inside a closed cooling circuit of the dynamo-electric machine. Heat tubes have woven structure (8) in one end section of the evaporation zone and/or the condensation zone to enlarge the surface of the evaporation zone and/or the condensation zone. Woven structure (8) is heat-conducting and has the possibility of providing air flow swirling in the evaporation zone and/or the condensation zone. |
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Invention relates to heater with heating surface oscillated by solenoid built in the heater. Said solenoid is supplied by common power supply circuit while heating surface rests on solenoid case via resilient suspensions. The latter allow said surface oscillate relative to solenoid case. |
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Automatic keeping of a heat carrier temperature inside a tube within the specified range is performed. A liquid-and-gas tube-and-shell heat exchanger with an automatic control system for the heat exchange process control comprises a casing from two concentrically set cylinders with heat exchanging tubes installed in-between, the upper part of the central tube is fitted with a gas damper with the output end of its axis being connected to a drive mechanism which is presented as a lever coupled with a heat controller by a rod. |
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Heat exchanger, heat exchange plate and production of said heat exchanger Heat exchanger comprises several pairs of heat exchange plates made of sheet metal of 3D ordered structure. Note here that first flow channel is arranged inside the row of said pairs while between them second flow channel is composed. Every said plate has at least one through hole. The latter is surrounded by lugs cut in its zone and bent off outward. Note also that lugs of one plate are fitted in through hole of adjacent plate. |
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Invention relates to heat exchangers and can be used in power engineering and allied industries. Heat exchanger is composed by spiral flexible pipe with turbulence promoters spaced apart at its inner surface and composed of circular ledges. Spiral radius R makes 0.05≤D/R≤0.25, where D is pipe ID, R is spiral radius. Note here that ID d of said ledges makes 0.85≤d/D≤0.98, while spacing t between ledges is 0.45≤t/D≤0.6. |
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Wet-vapour condenser of microturbine Condenser consists of the main and inner housings, annular distribution grid, pipe surfaces of condensate cooling, cooling water supply and discharge manifolds. Cooling water supply and discharge manifolds are designed as pipes of larger diameter than the pipe surfaces of condensate cooling. Pipe surfaces of condensate cooling are designed in the form of helically twisted coil pipes twisted to the centre in one horizontal plane and untwisted in another horizontal plane. |
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Distributing chamber (5) is externally limited by a casing (3), a bottom (2) and a grid (6) and provides for the interconnection of a central supply pipe (8) and a lateral outlet channel (1) via a gap between the bottom (2) and the end face part of the central supply pipe (8). The lateral outlet channel (1) is formed by the casing (3) and the central supply pipe (8). The grid (6) is installed in the lateral outlet channel (1) and its porosity factor falls in the range from 0.3 to 0.8. Ratios of the distributing chamber (5) dimensions correspond to the conditions considering the interrelations of the height of the distributing chamber (5) and the inner diameter of the central supply pipe (8); height of the inlet to the distributing chamber (5) and the inner diameter of the central supply pipe (8); height of the distributing chamber (5), height of the inlet to it and the inner diameter of the central supply pipe (8); height of the distributing chamber (5) and height of the inlet to it, radius of the lower casing (3) part, outer radius of the central supply pipe (8); distance from the bottom (2) to the step (7) on the casing (3) respectively with the height of the distributing chamber (5), and with the radius of the lower casing (3) part and height of the inlet to the distributing chamber (5); radius of the lower casing (3), inner diameter of the central supply pipe (8) and height of the inlet to the distributing chamber (5). Dimensions of the flow passage of the distributing chamber (5) are related with its hydrodynamic characteristics by a ratio considering the mass flow of working medium through the grid (4) hole, average mass flow of working medium through the grid, total pressure loss at the grid (4), density of working medium, average velocity of working medium in the central supply pipe (8), area of the cross-section of the working medium jet falling on the grid (4), radius of the upper casing (3) part, outer radius of the central supply pipe (8), reference radius of the grid (6) and three empirical coefficients. |
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Method for formation, introduction and fixation of ribs in boiler tubes Invention refers to heat power engineering and can be used at manufacture of boiler tubes. A production method of boiler tubes with different inner ribbed surfaces consists in the fact that a spindle calculated as per dimensions and provided with a pass having the specified shape of outer surface is made with coiling into the pass of a wire-like element forming on it a reverse image of the specified ribbed structure of a tube. A brazing metal paste is applied onto outer surface of the wire-like element and the spindle is introduced into the tube. In order to provide adaptation of the wire-like element to inner surface of the tube, the spindle is removed from above wire-like element and the tube is heated up to fusion temperature of the brazing metal paste to connect the wire-like element to inner surface of the tube, and then, the tube is cooled. |
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Electric drive of fan of cooling tower Invention relates to heat power engineering. In an electric drive of a fan, which contains a blade turning mechanism, a blade support locking device, a blade turning angle sensor; with that, the blade turning mechanism is made in the form of internal and external end stators that are in magnetic contact with end rotors, which in their turn are kinematically connected to each other, internal and external stators are connected to frequency converters, and the blade turning angle sensor is made in the form of two magnetically connected vertical columns with coils with cores, which are arranged on a fixed base in the zone of blade end faces. |
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Fan cooling tower includes a vertical housing with air inlet openings located along the perimeter of its lower part, a water trap and a fan impeller connected to an electric drive of its rotation around the vertical axis; with that, the following is in-series located tier-by-tier in the housing in a downward direction: a drop catcher, a water distributor with spraying elements, the first stage of the sprayer and the second stage of the sprayer that is located above air inlet openings; with that, the above spraying elements are oriented in the direction of upper surface of the first stage of the sprayer. The housing has an open upper end part; the fan impeller is arranged between the first and the second sprayer stages; with that, the fan impeller is located relative to upper surface of the first sprayer stage at the distance that does not exceed 0.38 of the fan impeller diameter, and relative to lower surface of the first sprayer stage at the distance comprising 0.03 to 0.075 of its diameter, the maximum values of which corresponds to a guaranteed working gap between the fan impeller and the inner surface of the housing, and minimum value - to allowable non-uniformity of distribution of the air flow along the cross-sectional area of the first and the second sprayer stages. Diameter of the fan impeller is 0.9 to 0.98 of minimum size of the internal cross-section of the housing. Lower surface of the second sprayer stage is located relative to the fan impeller at the distance that does not exceed 0.38 of its diameter. |
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Invention relates to heat power engineering and can be used in heat exchange systems intended for recovery and use of waste heat. A system operating as per Rankine organic cycle and intended for recovery and use of waste heat supplied from a waste heat source by means of a closed circuit of working fluid medium includes at least one evaporator. In addition, the above evaporator includes a surface-treated substrate for contribution to bubble boiling of working fluid medium to provide restriction of working fluid medium temperature to the value below the specified temperature. Besides, the evaporator is made so that evaporation of working fluid medium is provided by using waste heat supplied from the waste heat source. |
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Control method and device of fluid medium temperature and flow rate Invention relates to instrument-making industry and can be used at control of fluid medium flow rate and temperature. According to this invention, materials, components and methods are aimed at manufacture and use of macro-scale channels containing fluid medium, the temperature and flow rate of which is controlled by means of geometrical sizes of the macro-scale channel and configuration of at least some part of the wall of the macro-scale channel and a flow of composite particles, which form fluid medium. Besides, the wall of the macro-scale channel and the flow of composite particles have such a configuration that collisions between composite parts and the wall can be preferably accompanied by mirror rebound. |
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Cooling tower arrangement and indirect dry cooling method Invention refers to heat engineering and can be used in cooling towers with dry-type heat exchangers. A heat exchanger meant for cooling of liquid and oriented vertically along the longitudinal axis, comprises the first cooling delta set in the first point along the longitudinal axis and including the first inlet pipeline to let the flow of liquid in, which is connected to the first supply main via the fluid medium, and the first outlet pipeline to let the flow of liquid out, which is connected to the first inlet pipeline and the first discharge main via the fluid medium as well as the second cooling delta set in the second point along the longitudinal axis above the first cooling delta and including the second inlet pipeline to let the flow of liquid in, which is connected to the second supply main via the fluid medium, and the second outlet pipeline to let the flow of liquid out, which is connected to the second inlet pipeline and the second discharge main via the fluid medium. |
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Cleaning of outer surface of aluminium or aluminium alloys of air cooling hardware Invention relates to cleaning outer aluminium surfaces of air cooling hardware. Proposed method comprises processing of surface with detergent and flushing with water. Note here that cleaning is conducted in three steps. At first and third steps, surface is flushed with heated water or the mix of water with steam at jet pressure of 20-150 bar. At second step, surface is flushed with 0.25-1.5% water solution of acidic detergent heated to 20-60°C at jet pressure of 20-150 bar and duration of 10-30 minutes. Used detergent comprises the following substances at the following ratio of components in wt %: orthophosphoric acid - 20.0-25.0, nitric acid - 8.0-15.0, oxyethylidenediphosphorus acid - 2.0-4.5, non-ionic surfactant - 0.05-0.11, water making up to 100. At first and third steps, surface is flushed with water heated to 20-100°C or with mix of water with steam heated to 100-155°C. |
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Device for leakage check, radiator flush and determination of heat emission in vehicle radiators Device for leakage check, flushing and determining the heat emission of vehicle radiators relates to washing equipment and can be used to clean radiators of cooling systems for internal combustion engines. The device comprises a test chamber, tubular electric heaters, a tank, a compressor, a circulation pump, a filter and pipelines, a clamp for a radiator with a removable top allowing for the installation of radiators of different dimensions in it, a manually controlled four-position distributor, a drain tap. |
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Heat exchange panel and method of its assembly For the purpose of water heating by solar radiation, a heat exchange panel with absorbing coating is put in a heat insulated casing with the glass through which the sun light reaches the surface of the panel, heats it and an attached pipe with a heat carrier, the heated heat carrier is delivered by the said pipe to the accumulation tank of a user. The heat exchange panel and method of its assembly comprises elements made from aluminium profiles with a heat carrier pipe being inserted in them, the flat surface of the aluminium profile of the heat exchange panel is fitted by V-shaped longitudinal grooves 0.5 mm wide and deep with the pitch between the centres of 10 mm and is coated by heat-proof paint diluted by a solvent, and the aluminium profile elements are made on the opposite sides with the edges forming a closed loop around the heat carrier pipe when one element is jointed with another, being a part of heat conducting section of the panel and ferruling it due to some structurally specified tension. Circulation of the heat carrier in the loop provides for the accumulation of hot water due to cooling of the heat exchange panel. For the purpose of maximal efficiency of the process it is necessary that the heat exchange panel is of minimal heat capacity but at the same time transfers heat to the heat carrier as fast as possible. The above is implemented in the proposed invention by manufacturing of the heat exchange panel from the material with good thermal conductivity - aluminium - and by the optimisation of the panel's heat conducting section for better heat contact with the heat carrier pipe. |
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Condenser comprises casing connected with condensate collector and, via adapter pipe with vertical stiffness ribs, with low-pressure cylinder exhaust, and manifold with coolant feed pipe connected thereto. Note here that said manifold is mounted at joint of adapter pipe to low-pressure cylinder exhaust. It is secured by yokes to stiffness ribs arranged in perimeter of adapter pipe. It has holes directed to adapter pipe wall at the outlet of which baffle plate is arranged. Note here that shields are welded to stiffness ribs to prevent ingress of cooling medium into condenser steam chamber. |
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Heat exchange plate and plate-type heat exchanger Plate-type heat exchanger comprises several heat exchange plates (1) provided one near the other and providing for the first interplate gaps (3) and the second interplate gaps (4) alternately. Every second heat exchange plate forms a primary plate (V) and every second secondary plate (1"). Every heat exchange plate is continued in the plane (p) of extension and comprises a heat transfer zone and an extreme zone around the heat transfer zone. The heat transfer zone comprises a flute (30) consisting of ridges (30) and recesses (40) each of which is continued in the longitudinal direction. The ridges have two extreme surfaces (31, 32) and a base surface (33) between the extreme surfaces and with the first width (34) being transverse to the longitudinal direction. The recesses have two extreme surfaces (41, 42) and a base surface (43) between the extreme surfaces and with the second width (44) being transverse to the longitudinal direction. The base surface of the recesses at primary plates is inclined in respect to the extension plane and the base surface of the ridges at secondary plates is inclined in respect to the extension plane. |
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Fan or chimney-type cooling tower with steam trap Fan or chimney-type cooling tower comprises a catchment basin 1 of cooled water and the vertical housing 3 mounted over it above the water level on supports, which is open from below for atmospheric air intake and from above - for exit of the steam-air mixture, and located in the housing 3 irrigation, water distribution and drop-trap devices 5, 6, 7 respectively. Above cooling tower housing 3 the steam trap is mounted in the form of the dome 8 communicated with the atmosphere of a thermally conductive and corrosion resistant material of conical, cylindrical, pyramidal or hemispherical shape with the condensate-trap trough 9 provided along the perimeter of its lower part, connected by the tubular channels 10 with the inner part of the cooling tower housing 3 below drop-trap device 7. The dome 8 can be made continuous with the windows provided in its lower part for outlet to the atmosphere of steam-air mixture partially dried in the steam trap or in the form of the louver system forming the shape of its profile. The area of the space communicating with the atmosphere of the dome 8 of the steam trap is at least 1.5 times greater than the area of the outlet section of the cooling tower housing 3. |
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Method of cleaning of energotechnological equipment working surfaces Invention relates to cleaning of working surfaces of electric separators, scrubbers, bins, silos, boilers, furnaces etc, and can be used for destruction and removal of solid, bonded and loose materials. Proposed method comprises delivery of explosive composed by combustible gas, for example, propane, methane, hydrogen and mixed thereof and oxidise, for example, air or oxygen to blast area, batching of explosive and remote initiation of the blast. Note here that said explosive is enclosed in plastic bag. Invention allows a maximum filling of combustion chamber, control over blast power and rules out pressure loss at explosive combustion. Besides, it allows a directed blast owing to weakened strength of the shell. |
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Invention relates to power engineering and is aimed at fluid cooling. Method for reducing water losses in a water cooling tower consists in the generation of a corona discharge in the cooling air flow between the corona electrodes and an earthed grid, in the course of water cooling tower operation the direction of external wind flow at the tower's outlet cross section is measured and the system of corona discharge generation between the earthed grid, installed above the tower within its outlet cross section, and the corona electrodes is controlled so that to ensure that the live corona electrodes are placed on the windward side in relation to the earthed grid. |
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Invention refers to heat engineering and can be used in contact film-type heat exchangers. The invention implies that shutoff devices set from top to bottom at equal distance are installed in a film-type heat exchanger by means of reinforcement rods fixed in the upper and lower parts of the cylindrical casing of the device with the help of horizontal stops, every shutoff device is divided into two sections: an inner section and an outer section placed over the inner one, the inner space can be adjusted by moving the plates of the inner section with the help of thread valves. |
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Wire-and-tube heat exchanger, method of its production and refrigerator with such heat exchanger Wire-and-tube heat exchanger, in particular, for a domestic refrigerator, comprises two layers of wire and a refrigerant tube passing through the intermediate space between the layers. The intermediate space is filled at least partially with bitumen. The bitumen film is heated and pressed into inside the intermediate space through the gaps between the wires. |
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Cooling system refers to heat engineering, namely to heat mass exchange, and can be used for cooling of different heat releasing elements by removing heat from them to a cooler of any type by a heat pipe. The cooling system comprises a heat pipe as well as a heat releasing element and a cooler which are installed at the opposite pipe ends and are in thermal contact with the pipe. The heat releasing element and the cooler are set with the shift to the heat pipe centre according to the required heat resistance and transferred heat power of the cooling system. |
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Plate of plate-type heat exchanger and plate-type heat exchanger Plate (2) of a plate-type heat exchanger with basic heat exchange section (14) comprises the first area (16) including the first field (30) with the first corrugations which is essentially set on one side of the straight first line (26) crossing the second side edges (6a, 6b) and the second field (32) with the second corrugations which is essentially set on the opposite side to the first line (26). The basic heat exchange section (14) comprises the first outer area (18) set aside the first area (16) and passing along the second side edge (6a) between two distribution sections (12a, 12b). The first outer area (18) includes first ridges and recesses oriented in the first common direction in relation to the straight second line (27) parallel to one of the first side edges (4a, 4b). |
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Cooled gas from the gas main pipeline after the compressor station is fed into the heat exchange tubes of the heat exchange section. The additionally cooled secondary coolant (fuel gas etc.) is fed into the inner tubes located in the cavity of the heat exchange tubes. Due to the heat exchange of the cooled gas with the secondary coolant the additional cooling of the gas after the compression station is carried out and heating the secondary coolant. |
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Claimed washing liquids for heating systems contain either solution of 1-3% citric acid, 0.03-0.05 wt % of hydrochloric acid and 0.05-0.5 wt % of chitosan, modified with isobutyric acid, containing methylpyrazole group (chitosan methyl pyrazolyl isobutyrate - CMPI), or 1-3 wt % of citric acid, 0.1-0.15 wt % of sulfuric acid and 0.05-0.05 wt % of chitosan, modified with isobutyric acid, containing methylpyrazole group (chitosan methyl pyrazolyl isobutyrate - CMPI), water - the remaining part. |
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Aerodynamic assembly with heat pump Aerodynamic assembly comprises the stack with air-intake windows at its base and the air guide shields, the wind wheel with the vertical axis of rotation, located inside the stack, connected to the generator, and a distribution system made in the form of an annular pipe with fittings, which outlets are inserted into the stack. In the aerodynamic assembly a heat pump is inserted, which hot heat-exchanger is connected to the distribution system by the conduit through the fan, and the distribution system fittings are made pivoting. |
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Invention relates to the field of heat engineering, namely, to a system of guide discs for a heat exchanger, to a heat exchanger with application of the system of guide discs, to the method to manufacture a heat exchanger, and also to a set for equipment or re-equipment of the heat exchanger. The system of guide discs according to invention has multiple guide discs, which are designed to guide the medium flowing in the crisscross counterflow in the core of the heat exchanger and in the zone of the jacket between the core and the jacket surrounding the core. Each guide disc is made as capable of placement onto the heat exchanger core. |
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Invention relates to heat-and-power engineering, chemical and petrochemical industry and is designed for use large-tonnage industrial plants. In the shell-and-tube heat exchanger comprising a body with bottoms, a tube bundle closed at both sides by tube sheets, arranged in the form of a disc with continuous ledges and indents arranged concentrically, in which holes are made to fix the tubes of the tube bundle, any ledge or indent in the cross section have the shape of the right-angled triangle, one side of which is perpendicular to the plane of the tube sheet, and the other one is inclined to it, at the same time holes for fixation of tubes are arranged in the middle of the inclined side, and in the centre of the tube sheet there is a cylindrical ledge with a hole for fixation of the central tube. |
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Aerodynamic cooling tower comprises a stack, with wind-guiding shields at inlet windows and a wind wheel installed in the stack and connected to a generator. The cooling tower comprises an irrigator with inclined planes, which forms a single structure with a wind wheel. The irrigator with inclined planes, forming a single structure with a wind wheel, is made in the form of two rings connected by vertical stands, to which wind wheel blades are fixed, and in the centre of the rings there is a vertical bushing connected to rings with radial rods, at the same time lower rods are moved in respect to upper ones by a constant angle. Inclined planes of the irrigator are made in the form of a film, which is fixed to each upper radial rod and a lower radial rod moved by the constant angle, at the same time the shift angle of the rods is selected so that inclined planes formed by films form an angle of 40-60 degrees with a vertical line. |
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Plate heat exchanger with coplanar channels Heat exchanger comprises corrugated plates placed layer by layer with their corrugations crossing; at that the corrugations are of alternating width as per pitch next but one, of two sizes by turn, forming the areas of passage sections for air FA and for gas FG with the proportion defined according to the formula F G F A = Δ p A Δ p G р A ( t G + 273 ) р G ( t A + 273 ) [ 20,92 ⋅ ( 1 + 0,00135 ⋅ t Г ) 21,3 ⋅ ( 1 + 0,00135 ⋅ t B ) ] 0,252 3 , where pA stands for the air pressure in the heat exchanger path, pG - gas pressure in the heat exchanger path, ΔpA - air pressure losses in the heat exchanger path, ΔpG - gas pressure losses in the heat exchanger path, tA - air temperature in the heat exchanger path, tG - gas temperature in the heat exchanger path. |
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Water-distributing device for contact reactors Invention relates to the field of power engineering. A water-distributing device for contact reactors is made in the form of plates with evenly arranged holes of rectangular shape, besides, plates are arranged in two tiers, they have the shape of cross section of the contact reactor, bottoms of each tier have equal number of holes with rounded angles, besides, the clear section of each tier makes 40-60%, at the same time the holes in the adjacent tiers by height are arranged with a rotation by the angle of 80-100 degrees, and the distance between adjacent holes makes 0.2-0.3 of their width, at the same time the distance between bottoms of tiers is equal to 8-10 of hole width. |
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Device for gas compression and drying Gas compressing and drying device comprises a multistage compressor with a low pressure stage, a high pressure stage and a delivery branch pipe, and an adsorption dehumidifier with a drying zone and a regeneration zone; at that an intercooler is set between the low pressure stage and the high pressure stage. The device is additionally equipped by a heat exchanger comprising a main chamber with an inlet part and outlet part for the first primary fluid medium, and the ends of the heat exchanger tubes are connected to a separate input chamber and output chamber for each tube bundle; the first tube bundle forms a cooling circuit of the intercooler used to heat the gas from the high pressure stage for the purpose of adsorption dehumidifier regeneration. |
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Use of composites with adjusted nanotubes for heat transmission in wells Invention relates to heat engineering and can be used for heat removal from heating units in wells. In the device containing an anisotropic nanocomposite element which is bounded thermally with a heating unit for the purpose of heat removal from the above unit along the preset direction, the anisotropic nanocomposite element forms a cable and includes heat-conducting nanoparticles introduced into the base material and adjusted in it in order to form a heat line to transmit heat from the first cable end to its second end, at that the heat conductivity in the preset direction is bigger than the heat conductivity in the direction perpendicular to the preset direction and the base material is configured so that there is contact between the heat-generating and heat-absorbing elements. The invention also includes the method of heat removal and the tool intended for use in the well. |
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Invention relates to the field of thermal engineering and may be used in heat exchangers for water heating. The heat exchanger is made of one stock from heat conductive material and comprises ribs guiding fluid medium and transferring heat between fluid medium and heat exchanger; between the specified ribs there are transverse ribs, which protrude in direction substantially perpendicular to the specified ribs, to the distance, which is less than the distance between the specified ribs, and in direction substantially across the direction of motion of the fluid medium, at the same time transverse ribs are located in turns close to or on opposite ribs so that fluid medium flows between ribs and follows the twisting path between the ribs, at the same time the transverse direction stretches substantially perpendicularly to the specified ribs. |
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Condenser of steam with air cooling and natural circulation, and also method Group of inventions relates to a condensation plant with air cooling and may be used for power plants. The condenser comprises a tubular jacket, which has an open upper part and an open lower part, a ring of bundles of tubular panels arranged vertically and at the angle to each other. Each of bundles of the tubes comprises the main condensation area and the secondary condensation area, is adapted for passage of the air flow through it in order to condense liquid in panels and is made so that air flow passes via panels and exits through the upper part of the jacket. Inside the jacket at the level of the soil there is a pipeline for steam supply. The condenser is equipped with a system of removal of non-condensing gases with active or passive devices for control of local flow of removed mixture from non-condensed gases and added steam. |
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Ventilation cooling tower comprises a body, a spraying device, a tank for collection of liquid and a fan, the body comprises two parts - an upper part, comprising a spray nozzle and a drop separator, between which there is a header of the spray device with nozzles, and a lower part, in which there is a tank-water reservoir for collection of cooled water with a fan installed on it, besides, the body is made of thin-walled stainless steel, and in the tank-water reservoir there is a diffuser, which represents a part of the body and is connected to the fan, made with a plastic impeller and a multi-speed electric motor, making it possible during operation, depending on weather conditions, to change efficiency of the cooling tower due to variation of air flow, and the spray nozzle comprises tubular elements from thermoplastic material with a latticed wall folded in layers in parallel to each other, besides, at the ends the tubular elements are welded to each other, tubular elements are made with a triangular cross section, and between each layer of tubular elements across the tubular elements along their every end there is a strip from thermoplastic material, welded to tubular elements in places of their contact with the strip, besides, in process of welding they melt end sections of tubular elements and strips laid between them, and in process of melting they form monolithic end walls of the block, besides, the cavities of each tubular element and annular space are filled with hollow polymer balls, besides, the diameter of the balls is by 5÷10% more than the maximum size of the cell in the latticed wall of tubular elements. The body of the nozzle comprises two coaxial joined cylindrical bushings: a bushing of larger diameter and a bushing of smaller diameter, at the same time inside the bushing of smaller diameter, coaxially to it, there is an auger, rigidly connected to its inner surface, for instance, pressed in it, besides, the outer surface of the auger represents a helical groove, and inside the auger there is a hole with a helical thread, and in the bushing of the larger diameter, coaxially to it, there is a nozzle rigidly fixed in it, for instance, by means of a threaded connection, via a sealing gasket, at the same time inside the nozzle there is a cylindrical hole made coaxially, which changes into an axisymmetrically arranged diffuser, which is connected to a cylindrical chamber formed by the inner surface of the bushing of smaller diameter and the end surface of the auger, which is made of solid materials: tungsten, ruby, sapphire carbide. |
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Fastener of ice first cooling device at second cooling device Invention relates to assy for fastening cooling unit (10) intended for ICE cooling. Assembly (10) comprises first engine coolant cooling device (12a) and second supercharging air cooling device (12b). Retainer section (32a) of said first device (12a) can interact with retainer section (32b) of second device (12b) owing to their geometry so that second device (12b) gets in mid retainer position at first device (12a). First device (12a) retainer section (56a) can be automatically retained at second device (12b) retainer section (56b) owing to elastic fit so that second device (12b) gets in final retained position at first device (12a) whereat first device (12a) third face (30a) stays opposite second device (12b) third face (28b). Retainer section (32a) comprises first plate and T-like retainer pin with it foot expending perpendicular from first plate white retainer head extends perpendicular from said foot. Appropriate second device (12b) retainer section (32b) comprises second plate confining retainer cut-out that covers said foot so that second plate extends between first plate and retainer head make second device (12b) get in mid retainer position at first device (12a). |
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Method for steam-chemical treatment and passivation of internal surfaces of heat-exchange pipes Method is carried out with facilities of maintenance of metal temperature in heat-exchange pipes at the required level in the range of 150-550°C, and also by performance of the process into three stages as gaseous reagents are serially supplied into the gas flow in the following order: carbon dioxide, hydrogen and oxygen. |
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Drum cooler can convey and cool hot lumps, for example, calcined coke with heat recovery for process and economic purposes. Lumps are transferred inside revolving inclined tubular space while cooling water flows in surrounding jacket. Flexible pressure hoses are connected to unions of water inlet and outlet nearby "hot" and "cold" ends of the drum while the drum swings left and right incline. Lengthwise flat radial plate is made along generatrix of tubular space to lift cooled lumps and to throw them onto the shell. |
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Liquid-oil heat exchanger for internal combustion engines of vehicles Invention relates to the field of heat engineering and may be used in heat exchangers, in which heat transfer is carried out via fixed and rotary walls similarly to a pipe-in-pipe type or built into an engine unit. In the liquid-oil heat exchanger for internal combustion engines of vehicles, comprising a body, in which there is a pipe rigidly connected with it with an inner pipe, installed as capable of rotation, the inner pipe at the inlet and outlet is equipped with pump blades, and via a sealant it is connected with an electric motor, besides, on the inner pipe there is a helical ribbing, and ribs have dissections and are turned at the angle from 10° to 45°. |
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Thermal diode includes at least two heat-carrying materials being in contact with each other; with that, materials that are in contact form layers, the materials of which have different Debye temperature; at least some part of layers is made from the materials, the Debye temperature of which subsequently rises from layer to layer. |
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Method of high-potential thermal energy accumulation and storage Invention relates to a method of high-potential energy accumulation and storage. This method involves alternating loading of heated circulating disperse solid heat carrier by gravity to heat accumulator in the form of heat-insulated vessel. Heated disperse solid heat carrier is removed by gravity via closed chutes from ammunition combustion module group and distributed evenly over the vessel perimeter and cross-section via internal chutes of different radial length matching the number of combustion modules. Ventilation air fed under the chutes is used to burn down admixtures in particles of dispersed solid heat carrier. Discharge of heated solid heat carrier through converging lower part of heat accumulator allows levelling of temperature of outgoing heat carrier supplied to utilities. Cooled circulating disperse solid heat carrier returned from utilities is lifted to feeding tank of ammunition combustion aggregate for distribution over combustion modules. |
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Fan cooling tower includes shell, spraying device, liquid collecting tank and fan. The housing consists of two parts, upper part with sprinkler and drop separator, between which a header of the spraying device with nozzles is located, and the lower part in which a water collecting tank is located for collection of cooled water with a fan installed on it; the housing is made from stainless steel sheets, and in the water collecting tank there is a diffuser that comprises a part of the housing and is connected to the fan provided with a plastic impeller and a multi-speed electric motor allowing changing the cooling tower capacity during operation, depending on weather conditions, by changing the air flow rate, and the drop separator is provided with triple corrugation, where the air flow changes direction for three times resulting in considerable reduction of drop entrainment, and each nozzle of sprinkler is made in the form of hollow shell out of two coaxial parts with axial symmetry: base and cover rigidly attached to each other by four latches, and inlet nozzle is fixed to the base tangentially and creates swirling pressure of discharge in the nozzle body, at the same time the cover is three-dimensional, with involute profile and central conical hole with a cone angle of 130° at the top, and the base is profiled, with a central fairing of the swirling flow formed by a conical surface transforming into a sphere at the top and directed towards the central conical hole in the cover, and the base of the conical surface is smoothly coupled with toroidal surface of the base. |
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In a heat exchanger pipe, smooth pipe sections and ledges form a channel, where ledges feature additional heat exchanger intensifier in the form of discreet slots perpendicular to flow, and the channel matches geometry relations: l2=(90-100)h; l1=(90-100)h; l'/l1=0.05; h/D=0.03, where l2 is slot length, mm; l1 is ledge length, mm; l' is length of ledge section between shallow slots, mm; h is ledge height, mm; D is inner diameter of heat exchanger pipe, mm. |
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Combined cooling tower with rational system of water reuse Combined cooling tower includes shell, in the lower part of which there is a water-collection bath matching the shape of shell made of water-collecting shields, and above the bath there is a device for air intake made in the form of louvre grids arranged along the perimeter of the shell; in the upper part of the cooling tower shell there is a casing of an axial fan made of glass plastic and including a confusor positioned above a drop catcher coaxially to the cooling tower shell and rigidly connected to it, while a cylindrical part housing a fan impeller installed with a gap and a diffuser, in which at least three adjustable braces are attached for fan mounting with built-in electric motor are coaxially connected to the confusor; in the middle part of cooling tower shell, a water distribution system with headers of variable cross-section bearing nozzles spraying water above sprinkler fixated in the shell by stiffeners is positioned, and water reuse system features separate hydraulic circuits of water preparation and utilisation. In lower part of cooling tower shells there are at least two tanks for water collection connected to each other by compensation pipe, providing for hydraulic independence of circuits for working water preparation and utilisation, where one tank is connected to pump supplying water cooled in cooling tower to consumer, which returns via valve by pipeline into the second tank, from which heated water is supplied by pump through filter and valve by pipeline into collector with nozzles arranged in upper part of cooling tower shell; a system of hydraulic filter resistance control consisting of manometer and valve is located in section between filter and valve, while shell of each spraying nozzles is comprised by interlinked cylindrical bushings of larger and smaller diameter, and inside each bushing of smaller diameter an auger rigidly linked to its inner surface, e.g. by pressing-in, is placed, so that outer surface of an auger is a screw groove, and a hole with screw thread is made inside an auger. |
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Invention refers to heat power engineering and can be used at manufacture of tubular heat exchangers. A tubular heat exchanger for heat exchange between two fluid media includes housing (2), inside which one or more tubes (8) for the first fluid medium pass between inlet and outlet chambers (5, 6). The above tubes pass through openings (13) in baffle walls (11) fixed at some distance from each other by means of one or more fasteners. The fastener represents channel (14) fixed by being latched in one or more grooves (19) formed on the corresponding baffle walls (11). According to the invention, the above channel has a V-shape, and groove (19) has a V-shape with projections (23) on two of its opposite edges (22) so that V-channel (14) can be latched by being entering behind those projections. |
Another patent 2513347.