Heat exchanger and heat source block

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

 



 

Same patents:

FIELD: machine building.

SUBSTANCE: annular space by the partitions is sectioned into odd number of paths so that all paths, except for the last one, are located on periphery of pipe lattice, and the last - at the centre, and the diameter of this path by the size coincides with the diameter of the reactionary zone, and the pipe ends are arranged uniformly along the cross section of this zone.

EFFECT: reactor has improved overall performance and decreased metal consumption.

3 cl, 6 dwg

FIELD: heating.

SUBSTANCE: group of inventions relates to methods of removal of low-grade heat from the power systems of spacecrafts (SC). The method of operating a drip refrigerator-emitter (DRE) comprises heating the coolant, its transformation into a stream of droplets cooled by radiation in outer space, collection of droplets and feeding the condensate to the power system. In the first embodiment, the stream of droplets is affected by the external electric field, the parameters of which are changed along the trajectory of flying of the SC. In the second embodiment, the stream of droplets is affected by the flow of charged particles, which parameters are changed along the trajectory of flying of SC. In the third embodiment, in the stream of droplets near their collection the gas is injected with low electric resistance. The injection intervals correspond to the time of charge accumulation on the droplet, and the injection rate is changed along the trajectory of flying of the SC. In the fourth embodiment, the gas with low electrical resistance is dissolved in the liquid coolant of DRE. Depending on the purpose of SC and parameters of DRE it is possible to use each of the proposed methods of operating DRE, or any their combination.

EFFECT: decrease of defection of droplets from straight-line trajectories and thus reduction of loss of coolant to ensure more efficient and reliable operation of DRE.

4 cl, 6 dwg

Heat exchanger // 2527933

FIELD: heating.

SUBSTANCE: heat exchanger comprises a package of heat exchanging plates (1, 1a, 1b, 1c) formed from metal sheet having a three dimensional pattern (2, 3), each plate (1, 1a, 1b, 1c) of the heat exchanger has a groove (10) in which a gasket (9) is located, and the said groove (10) has a bottom inner surface (11), and the said bottom inner surface (11) has at least one protrusion (14, 15) directed towards the said adjacent heat exchanging plate (1a). On the part of the said protrusion (14, 15), the said gasket (9) is compressed greater than on the part located outside of the said protrusion (14, 15).

EFFECT: minimising the risk of fluid leakage.

15 cl, 6 dwg

Pipeline heater // 2525561

FIELD: heating.

SUBSTANCE: heater comprises heating units, each of which is located around the heated pipeline and comprises the heat insulating layer with the electrical heating element built in it, connected to current-carrying wires. The heating unit located at the beginning part of the pipeline is formed as a heat exchanger with the intermediate coolant using the thermal energy of the condenser of superheated steam of the nuclear reactor. Each subsequent heating unit is provided with a temperature sensor of the pipeline wall electrically connected to the control processor located in a control unit of the maritime platform. The heating element of each heating unit comprises a mechanism of start and stop of contact with current-carrying wires interconnected with the control processor. The pipeline with the heating sections and current-conductive elements are placed in a single heat insulated casing.

EFFECT: stable maintenance of the specified temperature range of the product pumped through the main pipeline under conditions of the cooling effect of the environment.

2 dwg

FIELD: heating.

SUBSTANCE: 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.

EFFECT: reduction of sizes; lower cost and improvement of the system's efficiency.

21 cl, 3 dwg

FIELD: heating.

SUBSTANCE: 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.

EFFECT: increased heat exchange in cooling deltas.

21 cl, 15 dwg

FIELD: energy industry.

SUBSTANCE: 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.

EFFECT: improving the thermal effectiveness by reducing energy consumption.

2 dwg

FIELD: heating.

SUBSTANCE: heat exchanger contains pipeline made in the form of wall of a through cavity with outer surface and end sections. Also it contains external heat transfer elements attached to one end section. Wall of the through cavity of another end section is made in the form of an enveloping element of a through opening that is formed in the wall of the room. At that external heat transfer elements are made in the form of facing elements of the wall of the room being made from steel plates, pipes, channel sections, angle elements or bars. End sections are fastened to each other by metal fixing device.

EFFECT: improving efficiency of heat transfer from heat exchanger to ambient air enlarging functional capabilities of heat exchanger and the number of hardware.

2 dwg

FIELD: heating.

SUBSTANCE: pipeline is made in the form of wall of a through cavity with outer surface and end sections. Besides external heat transfer elements are made and attached to one end section. Wall of a through cavity of another end section is made in the form of an enveloping element of a through opening, which is made in the wall of the room. At that external heat transfer elements are made in the form of facing elements of the wall of the room being made from steel plates, pipes, channel sections, angle elements or bars. End sections are fastened to each other by metal fixing device.

EFFECT: improving efficiency of heat transfer from heat exchanger to ambient air enlarging functional capabilities of heat exchanger and the number of hardware.

2 dwg

FIELD: heating.

SUBSTANCE: pipeline is made by manufacturing a wall of a through cavity with outer surface, end sections and an intermediate section that is arranged between end sections. Besides, external heat transfer elements are made, which are attached to end sections. The wall of the through cavity of the intermediate section is made in the form of an enveloping element of a through opening, which is made in the wall of the room.

EFFECT: enlarging the number of hardware; improving heat transfer efficiency from heat exchanger to ambient air.

2 dwg

FIELD: heating.

SUBSTANCE: 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.

EFFECT: improved efficiency of heat exchange between the heat carrying medium and the energy accumulating medium regardless of the mounting position of a heat exchanger, simplified manufacturing.

14 cl, 6 dwg

FIELD: heating.

SUBSTANCE: refrigerating circuit (3) for household appliances comprises the first heat exchanger (5) or a condenser, which is in flowing communication with a compressor (4) to ensure cooling and further condensation of cooling fluid passing through them, and the second heat exchanger (7) or an evaporator, which is in flowing communication with the first heat exchanger (5) via a circuit with a special device (6), made as capable to reduce pressure of the cooling fluid in the space (2) designed for cooling. The second heat exchanger (7) provides for evaporation of cooling fluid, heat absorption, cooling the space (2), and return of the cooling fluid via a tube (17) to the compressor (4). At least one of heat exchangers (5, 7) comprises a plastic tube (9), at least a part of which has such corrugated profile that it transfers its flexibility to the entire tube and/or increases heat-exchange surface. The tube (9) comprises at least two layers (S1, S2) imposed one onto the other, besides, preferably both layers are made of plastic. The first layer (S1) of the material is impermeable for a cooling fluid and/or non-condensed gases, and the second layer (S2) is impermeable for moisture.

EFFECT: using the invention will make it possible to ensure high flexibility of a cooling device in various directions and high tightness.

16 cl, 27 dwg, 1 tbl

FIELD: power engineering.

SUBSTANCE: in a heat exchange device for a refrigerating unit with a pipeline installed on a heat insulation substrate, the pipeline is formed as continuous and separated with a throttling point to an evaporator and a condenser, at the same time the substrate is made of two plane sections connected by a bent connection element, and so that the evaporator is installed on the first section, and the condenser - on the second one.

EFFECT: development of a heat exchange device for a refrigerating unit, the design of which makes it possible to reduce costs for building a coolant circulation circuit.

9 cl, 4 dwg

FIELD: heating systems.

SUBSTANCE: invention refers to refrigerating equipment. Steam-water ejecting refrigerating machine includes horizontal evaporator, condenser and ejectors, which are located perpendicular to longitudinal axes of these devices and above these devices. On upper part of evaporator housing there fixed is suction chamber with flat vertical front and rear walls, which is interconnected with inner evaporator volume through the openings made in its housing. On upper part of condenser housing there installed is receiving chamber with flat vertical front wall and steam baffle plate made in the form of rear wall curved radially outwards. Receiving chamber is interconnected with inter-tube space of condenser through the opening made in its housing. Ejector nozzles are installed on front wall of suction chamber. Diffusers of ejectors are fixed in rear wall of suction chamber and front wall of receiving chamber. Space between housings of evaporator and condenser, including diffusers of ejectors, is enclosed in an intermediate tight chamber connecting evaporator, condenser, suction chamber and receiving chamber to each other, thus forming a single unit. Holes interconnecting inter-tube space of air cooler to cavity of intermediate chamber are located in air cooler area of condenser along its housing. Intermediate chamber is equipped with a branch pipe to be connected to air ejecting device.

EFFECT: increasing economy, reliability, reducing manufacturing labour input, specific flow of working steam, noise emission to environment, and reducing dates and costs of erection, service during operation and repair.

3 cl, 3 dwg

FIELD: heating, refrigeration art.

SUBSTANCE: invention refers to a heat exchanger such as an evaporator, a condenser for a refrigerator, as well as to a method for fabricating the same. Said heat exchanger for refrigerators comprises a board and a refrigerant-carrying tubing that is in thermally conductive contact with said board and with a retaining material layer being attached to said tubing. The retaining material layer consists of a bitumen compound and it is bonded to the board by an adhesive layer. The tubing has a flattened cross-section. The adhesive layer consists of a heat-activated adhesive. The bitumen compound contains from 50% to 80% of a filler. Stone powder is used as said filler. A coat of varnish is applied to the retaining material layer face that is opposite the board. An average thickness of the retaining material layer is of 0.5 to 2 mm, and preferably of 1.0 to 1.5 mm. The method for fabricating such a heat exchanger, in particular its evaporator or condenser, includes the following steps: forming a package comprising board, refrigerant-carrying tubing and plate of bitumen compound, heating said plate and pressing said package together. The board, tubing and bitumen compound plate are laid up in the above said order.

EFFECT: providing an inexpensive heat exchanger with improved performance.

9 cl, 5 dwg

FIELD: the invention refers to heating engineering and may be used in cooling technique.

SUBSTANCE: the heat exchanger for a refrigerator has a board, a pipeline for cooling medium being in heat conducting contact with the board and a layer of a holding material bounded with the board and the pipeline. The layer of the holding material is of bituminous composition with a stuff, at that the heat capacity of the stuff is larger then the heat capacity of the bitumen. The heat exchanger is manufactured by way of forming a foot consisting of a board, a pipeline and a plate out of bituminous composition, at that out of the plate by heating and pressing the packet they form a layer of holding material. At such execution the heat exchanger may be easily utilized.

EFFECT: provides firm joining of the layers of holding material with the board.

12 cl, 5 dwg

The invention relates to refrigeration, namely the heat-exchange apparatus of refrigerating machines and installations, and can be used in refrigerating machines and installations used in all fields of technology, as well as in other branches of engineering, where the condensation of the vapor of the working fluid at a temperature close to ambient temperature

The invention relates to the field of power engineering, in particular to the heat transfer equipment working under boiling and condensation of the working environments, and can be used in installations of low-temperature air separation

FIELD: the invention refers to heating engineering and may be used in cooling technique.

SUBSTANCE: the heat exchanger for a refrigerator has a board, a pipeline for cooling medium being in heat conducting contact with the board and a layer of a holding material bounded with the board and the pipeline. The layer of the holding material is of bituminous composition with a stuff, at that the heat capacity of the stuff is larger then the heat capacity of the bitumen. The heat exchanger is manufactured by way of forming a foot consisting of a board, a pipeline and a plate out of bituminous composition, at that out of the plate by heating and pressing the packet they form a layer of holding material. At such execution the heat exchanger may be easily utilized.

EFFECT: provides firm joining of the layers of holding material with the board.

12 cl, 5 dwg

FIELD: heating, refrigeration art.

SUBSTANCE: invention refers to a heat exchanger such as an evaporator, a condenser for a refrigerator, as well as to a method for fabricating the same. Said heat exchanger for refrigerators comprises a board and a refrigerant-carrying tubing that is in thermally conductive contact with said board and with a retaining material layer being attached to said tubing. The retaining material layer consists of a bitumen compound and it is bonded to the board by an adhesive layer. The tubing has a flattened cross-section. The adhesive layer consists of a heat-activated adhesive. The bitumen compound contains from 50% to 80% of a filler. Stone powder is used as said filler. A coat of varnish is applied to the retaining material layer face that is opposite the board. An average thickness of the retaining material layer is of 0.5 to 2 mm, and preferably of 1.0 to 1.5 mm. The method for fabricating such a heat exchanger, in particular its evaporator or condenser, includes the following steps: forming a package comprising board, refrigerant-carrying tubing and plate of bitumen compound, heating said plate and pressing said package together. The board, tubing and bitumen compound plate are laid up in the above said order.

EFFECT: providing an inexpensive heat exchanger with improved performance.

9 cl, 5 dwg

FIELD: heating systems.

SUBSTANCE: invention refers to refrigerating equipment. Steam-water ejecting refrigerating machine includes horizontal evaporator, condenser and ejectors, which are located perpendicular to longitudinal axes of these devices and above these devices. On upper part of evaporator housing there fixed is suction chamber with flat vertical front and rear walls, which is interconnected with inner evaporator volume through the openings made in its housing. On upper part of condenser housing there installed is receiving chamber with flat vertical front wall and steam baffle plate made in the form of rear wall curved radially outwards. Receiving chamber is interconnected with inter-tube space of condenser through the opening made in its housing. Ejector nozzles are installed on front wall of suction chamber. Diffusers of ejectors are fixed in rear wall of suction chamber and front wall of receiving chamber. Space between housings of evaporator and condenser, including diffusers of ejectors, is enclosed in an intermediate tight chamber connecting evaporator, condenser, suction chamber and receiving chamber to each other, thus forming a single unit. Holes interconnecting inter-tube space of air cooler to cavity of intermediate chamber are located in air cooler area of condenser along its housing. Intermediate chamber is equipped with a branch pipe to be connected to air ejecting device.

EFFECT: increasing economy, reliability, reducing manufacturing labour input, specific flow of working steam, noise emission to environment, and reducing dates and costs of erection, service during operation and repair.

3 cl, 3 dwg

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