Heat transfer bay
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
SUBSTANCE: in both variants, pipe includes case 2 with evaporation zone 3, transport zone 4 and condensation zone 5. In condensation zone, thermoelectric converters 9, radiators 11, cooling them, and elements for thermal contact of the converters with the case and radiators are mounted on the case. Both variants feature pipe where each converter 9 with the said elements is positioned in housing 7 and, together with radiator 14, forms removable heat removal module 6 mounted on the case 2. In the second variant, condensation zone can include a site with radiator contacting the case directly, along with all other components.
EFFECT: simplified pipe maintenance, enhanced reliability, extended utilisation possibilities.
13 cl, 6 dwg
FIELD: engines and pumps.
SUBSTANCE: this engine comprises sealed o shaped to truncated cone partially filled with heat carrier. Said housing accommodates evaporator and condenser, heat insulating ring rigidly secured with both evaporator and condenser sections. Turbine blades working wheels are rigidly secured to heat insulating ring. Turbine working wheels are rigidly secured to engine shaft. Turbine wheels with guide vanes are fitted on the shaft, rim composed of a circular magnet covering said guides vanes. Rims of all wheels are arranged to make a circular clearance with said housing. Wheels with guide vanes are fitted to spin relative to the shaft in bearings. Outer circular magnet rigidly coupled with the housing is arranged above inner circular magnet. Screw is rigidly fitted on engine shaft. Hollow bars are arranged in said condenser. Spiral-shape combustion chamber is arranged around evaporator and includes the nozzle. Radiators are secured to said bars from both inner and outer sides of the housing and composed of trapezoidal plates with bushes arranged radially, said bushes covering the bars with clearance filled with heat conducting paste.
EFFECT: decreased weight and overall dimensions.
FIELD: power industry.
SUBSTANCE: invention relates to heat engineering and can be used in heat exchangers with heat tubes. A heat exchanger with heat tubes for transfer of heat from hot gas to cold gas includes a housing with the first chamber for supply of hot gas through it, the second chamber for supply of cold gas through it and multiple heat tubes spreading between the first chamber and the second chamber. Partition panels are located in the chambers to divide the chambers into compartments with heat tubes; with that, partition panels are located in a plane that is generally parallel to a gas flow through the chambers; with that, direction of the gas flow through one compartment with heat tubes is parallel to gas direction through an adjacent compartment with heat tubes. Heat tubes are assembled into one or more cartridges located so that they can be removed from the corresponding compartments. Each cartridge with heat tubes includes a frame with a support panel, which, when the cartridge is being installed into the compartment, interacts with a partition wall between the first chamber and the second chamber so that gas-tight separation can be formed between the first and the second chambers. Heat tubes cross the support panel and are attached to it in a gas-tight way.
EFFECT: enlarging acoustic characteristics of a heat exchanger due to reduction of vibration induced with flows.
11 cl, 4 dwg
SUBSTANCE: heat transfer panel can be used in temperature control systems of space vehicles (SV) for providing of temperature conditions of the equipment installed in earth satellites, interplanetary stations, landers and other space objects. SV heat transfer panel contains metal skin and built-in heat tubes. The panel is designed as sectional and consists of rigidly connected with each other separate hollow sections with heat tubes. Each section of the panel, including heat tubes, is designed as a uniform monolithic structure.
EFFECT: panel allows to improve the efficiency of heat contact between the cooled equipment and built-in heat tubes, unify the structure components, improve reliability and life of the panel, minimize pollution of SV internal atmosphere at the expense of avoidance of glue from used materials, and significantly simplify the technology of fabrication of instrument panel, which combines in itself heat and strength functions.
11 cl, 7 dwg
FIELD: radio engineering, communication.
SUBSTANCE: 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.
EFFECT: facilitating movement of liquid from a condensation area to an evaporation area and removing heat radiation from a cooled object.
SUBSTANCE: 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.
EFFECT: technical result consists in improvement of heat removal without any complication of the design.
14 cl, 5 dwg
FIELD: measurement equipment.
SUBSTANCE: 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.
EFFECT: improving fluid medium temperature and flow rate control accuracy.
54 cl, 18 dwg
SUBSTANCE: 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.
EFFECT: proposed solution allows for significant decrease of cooling system's heat resistance and increase of the power it transfers due to slight shift of the said elements In a particular application example, provided the heat releasing element and the cooler are shifted by 10% of the heat pipe length, the heat resistance decreased by 22% and the transferred heat power increased from 180 W to 220 W.
FIELD: power industry.
SUBSTANCE: condenser uses heat exchange tubes made from heat-resistant and heat-insulating material as a waste steam cooling device; thermobatteries, the cold junctions of which face inside the tube and the hot ones face the outer side, are mounted in the above heat exchange tubes. Hot air from inter-tube space of the condenser is used for heating of rooms during winter time.
EFFECT: simpler design.
2 cl, 1 dwg
SUBSTANCE: invention relates to spacecraft thermal-control equipment. Proposed system comprises two two-chamber fluid thermal boards 22 to support the equipment. Said thermal boards are mounted at manned compartment 1. External heat sink 12 is composed of four diametrically opposite heat exchange panels 14. Panel 14 is furnished with heat pipe with condenser 15 arranged inside panel 14 and evaporator 19 integrated with self-contained heat transfer element 16 mounted at spacecraft outer surface nearby panel 14. Element 16 comprises two one-chamber fluid thermal boards 18. Evaporator 19 is furnished with steam temperature regulator 17 to shut off or open heat pipe circuit depending upon set temperature. Thermal boards 22 are hydraulically communicated by circuits 13, 21 with appropriate one-way fluid thermal boards 18 of elements 16 to make one-phase working body line. Every circuit 13, 21 comprises electrically driven pump 3, drain-fill valves 5, hydropneumatic accumulator 8, pressure and flow rate gages 4, 7, 10, flow rate controller 11 and electric heaters 23. Every circuit 13, 21 has working body temperature transducers 20. Replaceable elements of said circuits are connected in main lines via hydraulic joints. Main lines are fitted in manned comportment 1 via sealed lead-ins 6. Heat control system comprises also the two-chamber gas-fluid heat exchanger 24 with two replaceable fans included into both circuits 13, 21.
EFFECT: expanded application range, higher reliability and reparability.
FIELD: cooling equipment, particularly heat exchange apparatuses.
SUBSTANCE: device to remove heat from heat-generation component includes coolant stored in liquid coolant storage part, heat absorbing part including at least one the first microchannel and installed near heat-generation component. Heat absorbing part communicates with storage part. Liquid coolant partly fills microchannel due to surface tension force and evaporates into above microchannel with gaseous coolant generation during absorbing heat from heat generation component. Device has coolant condensing part including at least one the second microchannel connected to above coolant storage part separately from the first microchannel, gaseous coolant movement part located near heat-absorbing part and condensing part and used for gaseous coolant movement from the first microchannel to the second one. Device has case in which at least heat-absorbing part is placed and heat-insulation part adjoining heat absorbing part to prevent heat absorbed by above part from migration to another device parts.
EFFECT: reduced size, increased refrigeration capacity, prevention of gravity and equipment position influence on device operation.
22 cl, 4 dwg
FIELD: heat power engineering.
SUBSTANCE: heat pipe comprises vertical housing with evaporation and condensation zones and partially filled with heat-transfer agent and coaxial hollow insert in the evaporation zone which defines a ring space with the housing and is provided with outer fining. An additional hollow cylindrical insert of variable radius made of a non-heat-conducting material is interposed between the condensation zone and coaxial hollow insert. The outer side of the additional insert and inner side of the housing of the heat pipe define a closed space.
EFFECT: reduced metal consumption.
FIELD: heat power engineering.
SUBSTANCE: heat exchanger comprises housing separated into chambers of evaporation and condensation with a baffle provided with heat pipes which are arranged in both of the chambers. The zones of evaporation of the pipes are positioned inside the evaporation chamber, and zones of the condensation of the pipes are positioned inside the condensation chamber. The heat pipes inside the evaporation chamber are made of wound pipes of oval cross-section. The zones of condensation of heat pipes are also made of wound pipes of oval cross-section .
EFFECT: enhanced efficiency.
1 cl, 6 dwg
FIELD: heating engineering.
SUBSTANCE: heat pipe can be used for heat transmission and temperature control procedures. Heat pipe has evaporator provided with capillary-porous nozzle and capacitor. Evaporator and nozzle are connected by vapor line and condensate pipeline. Nozzle is made of electric-insulating material, for example, of ceramics. Grid-shaped electrode is mounted at the inner side of nozzle. The electrode is connected with rod electrode, which is mounted inside airtight isolator at edge part of evaporator.
EFFECT: improved heat power; prolonged length of heat pipe.
FIELD: heat-power engineering; utilization of low-potential heat, heat of soil inclusive.
SUBSTANCE: proposed thermosiphon includes heat pump with thermosiphon containing working medium capable of changing its liquid state to gaseous state and vice versa; it includes evaporation and condensation parts; thermosiphon is provided with hermetic thermal tube whose working medium is capable of changing its liquid state to gaseous state and vice versa; it also has evaporation and condensation parts; condensation part of thermal tube bounds cavity of heat pump evaporator together with outer housing, cover and lower platform; said cavity is provided with branch pipes for delivery of liquid phase of heat pump working medium and discharge of gaseous phase of heat pump working medium in such way that condensation part of thermal tube forms inner housing of heat pump evaporator; mounted in between of outer and inner housings of heat pump evaporator is intermediate housing which is provided with holes in lower part for passage of liquid or gaseous phase of heat pump working medium circulating inside its evaporator; tubes-nozzles mounted between inner and intermediate housings are directed vertically upward for admitting liquid phase of heat pump working medium under pressure; heat pump evaporator has inner surfaces. Besides that, outer, inner and intermediate housings of heat pump evaporator are taper in shape and are so located that have common vertical axis of symmetry; inner surfaces of heat pump evaporator and inner housing are finned.
EFFECT: considerable reduction of thermal head between soil and working medium in heat pump evaporator; reduced overall dimensions; possibility of utilization of energy of compressed liquid fed from heat pump condenser to evaporator.
3 cl, 2 dwg
FIELD: heat transfer equipment, particularly to carry heat for long distances, for instance refrigerators.
SUBSTANCE: heat-exchanging system comprises closed loop including main heat-exchanging channel, heat carrier agent pumping device, additional heat-exchanging channel and heat-carrier supply channel connecting the main and additional heat-exchanging channels. Heat carrier agent pumping device may withdraw heat carrier agent in vapor or vapor-and-liquid state from one heat-exchanging channel and supply above vapor or vapor-and-liquid heat carrier agent under elevated pressure into another heat-exchanging channel. Heat carrier agent supply channel is formed as channel with capillary partition closing the channel. During heat-exchanging system operation the capillary partition obstructs vapor penetration or vapor-and-liquid flow. The vapor penetration obstruction is defined by cooperation between meniscuses and inner surfaces of capillary channels formed in the partition. The vapor-and-liquid flow obstruction is defined by bubble meniscuses cooperation with inner surfaces of capillary channels of the partition. The heat carrier agent pumping device may withdraw vapor or vapor-and-liquid heat carrier agent from any heat-exchanging channel and pump above heat carrier agent under elevated pressure in another heat-exchanging channel.
EFFECT: increased efficiency of heat-exchanging system.
14 dwg, 18 cl
FIELD: applicable for heat abstraction in various media.
SUBSTANCE: the heat transferring device has a sealed pipe with condensation and evaporation zones filled up with a heat-transfer agent with pockets provided on the inner surface, the pockets used for inhibition of draining condensate are located in the evaporation zone and made annular or formed by the sections of the helical surface adjoining the pipe inner wall with its lower edge at an acute angle, which are separated from one another by radial partitions, the annular pocket is formed by the side surface of the truncated cone, adjoining the inner wall of the mentioned pipe with the larger base. Besides, at least some of the pockets located one above other are positioned at such a distance that a capillary effect occurs between the surfaces facing one the other.
EFFECT: enhanced efficiency of heat transfer due to the increase of the pipe surface wettable by the heat-transfer agent, as well as simplified structure an facilitated actuation of the device.
3 cl, 7 dwg
FIELD: chemical and oil industry.
SUBSTANCE: reactor comprises housing, means for supplying initial components and discharging finished product, unit for heating and cooling made of a number of heat pipes, additional catalyzer applied on the heat pipes and/or housing and made of a coating. The heat pipes are staggered in the space of the housing. The total area of the surface of the heat pipes in the catalytic zone should provide heating and cooling the catalytic zone.
EFFECT: enhanced efficiency.
5 cl, 1 dwg
FIELD: electric mechanical engineering, possible use for cooling electric generators and electric engines.
SUBSTANCE: in proposed system for cooling electric machines, containing compressed air source with force pipeline, splitting vortex pipe, having as a result of energy division to hollows - hot one and cold one, thermal pipe made inside the hollow shaft of electric machine, as a special feature, along axis of hollow shaft a tubular channel is made for passage of cold flow from splitting vortex pipe, and space, formed by external surface of tubular channel and internal surface of hollow shaft is thermal pipe, condensation area of which - external surface of tubular channel, and evaporation area - internal surface of hollow shaft.
EFFECT: efficient and even cooling of electric machine, simplified construction, increased manufacturability.
FIELD: control of temperature of spacecraft and their components.
SUBSTANCE: proposed method includes measurement of temperatures in spacecraft temperature control zones, comparison of these temperatures with high and low permissible magnitudes and delivery of heat to said zones at low limits. Heat is delivered by conversion of electrical energy into thermal energy. Power requirements are measured at different standard time intervals of spacecraft flight forecasting orientation of its solar batteries to Sun. Magnitude of electric power generated by solar batteries is determined by forecast results. Measured magnitudes of consumed electric power are compared with forecast data. According to results obtained in comparison, flight time is divided into sections at excess of energy generated by solar batteries over consumed power, equality of these magnitudes and shortage of generated energy. High magnitudes of temperature are maintained at excess energy sections by conversion of difference of generated energy and consumed energy into heat. In case of reduction of generated energy in the course of changing the orientation of solar batteries on Sun, temperature in these zones is reduced to low limits at simultaneous equality of energies. In case of further increase of generated energy, temperature in said zones is increased to high limits at equality of energies. Then, in the course of change of generated energy, temperature correction cycles in temperature control zones are repeated.
EFFECT: avoidance of excess of consumed energy above generated energy of solar batteries.