1653results about "Tubular elements" patented technology

A heat dissipation device includes a vapor chamber (1) and at least one heat pipe (2). The vapor chamber (1) includes a bottom plate (10) and a top plate (11) combined with each other to form a cavity (100); the cavity (100) contains a top plate capillary layer (11a) covering the top plate (11) which has at least one through hole (110). The heat pipe (2) includes a pipe body (20) with a closed end (200) and an open end (201) fixed in the through hole (110), and a pipe capillary layer (21) with a connecting portion (210). The top plate (11) includes at least one protrusion (111) corresponding to the through hole (110) and having a receiving portion (111a) recessed inside the top plate (11), and a capillary structure (11b) in the receiving portion (111a) and contacting with the connecting portion (210) and top plate capillary layer (11a).

The utility model provides a cooling plate and a battery pack. The cooling plate comprises a cooling pipe, at least one pipe joint and a sealing piece, at least one pipe joint is connected to one end of the cooling pipe so as to be communicated with the cooling pipe; and the sealing piece is arranged between the pipe joint pipe and one end of the cooling pipe. The utility model aims to solve the technical problems of higher cost and poorer sealing performance of the snake-shaped cooling plate in the related technology.

The invention relates to the technical field of heat conversion flow distribution, in particular to a self-adaptive flow distribution method and device for a double-pipe heat exchanger, and the method comprises the following steps: S1, equipment assembly: installing a plurality of groups of flow pipes in the middle of a shell, and installing two groups of flow adjusting assemblies on one side of the input end of each of the plurality of groups of flow pipes; s2, arranging a plurality of groups of flow tubes in the shell in an annular matrix or a square matrix, establishing a plane-coordinate system by taking the center of the matrix as a coordinate origin, and numbering and marking each flow tube; s3, flow grade judgment; according to the scheme, the flow grade of the flow pipe is determined, the higher the flow grade is, the faster the flow speed is and the larger the flow is, then the flow channel area of the high-grade flow pipe is adjusted to decelerate and reduce the flow, the redundant quantity is distributed to the low-grade flow pipe, and it is guaranteed that the flow speed and the flow difference value of all the flow pipes are smaller than the set threshold value through comprehensive adjustment. Therefore, the effect of reasonable flow distribution is achieved, and the thermal conversion efficiency is improved.

A three-dimensional vapor chamber assembly structure includes a housing, heat pipes, a capillary member and a working fluid. The housing includes a first housing plate and a second housing plate, a cavity formed between the first and second housing plates, and through holes formed on the second housing plate. The heat pipe penetrates through the through holes and includes an open end having a flange formed thereon. The flange includes lateral and longitudinal surfaces. The lateral surface of the flange is attached to the second housing plate via a welding layer, and the longitudinal surface of the flange is attached to the second housing plate via a welding product. The capillary member is arranged inside the cavity and attached to the housing. The working fluid is arranged inside the cavity. Accordingly, a firm and robust vapor chamber structure capable of preventing welding material from entering the cavity is achieved.

A three-dimensional vapor chamber assembly structure includes: a housing including a first housing plate and a second housing plate, an accommodation chamber is formed between the first housing plate and the second housing plate, the second housing plate has penetrated holes, and a recessed slot is respectively formed at an outer circumference of the penetrated holes; a plurality of heat pipes correspondingly disposed in the penetrated holes, the heat pipes has an open end, the open end has a flange, the flange is disposed in the recessed slot, the heat pipe is combined with the second housing plate via a welded layer on the flange and the recessed slot; a capillary structure disposed in the accommodation chamber and attached on the housing and a working fluid is disposed in the accommodation chamber. Accordingly, a welding material is prevented from entering the accommodation chamber.

The invention discloses an aluminum pipe, a heat exchanger and application thereof, and belongs to the technical field of heat exchange materials. The aluminum pipe comprises an aluminum pipe base material layer and a zinc impregnation layer arranged on the surface of the aluminum pipe base material layer. The zinc impregnation layer has a zinc concentration gradient which is gradually reduced from outside to inside; the maximum zinc concentration of the zinc impregnation layer is 0.01 to 10 weight percent; the thickness of the zinc impregnation layer is larger than 0 and smaller than or equal to 400 micrometers. The zinc impregnation layer is formed on the surface of the aluminum pipe base material layer, corrosion can be limited from expanding to the inner layer, longitudinal expansion of corrosion is avoided, pitting corrosion is inhibited, the zinc content distribution of the zinc impregnation layer at different zinc impregnation depths can be controlled by controlling the maximum zinc concentration and thickness of the zinc impregnation layer, and the corrosion resistance of the aluminum pipe is improved. The zinc impregnation layer has a good anodic protection effect on the aluminum pipe, pitting corrosion extension is effectively inhibited, the corrosion resistance of the aluminum pipe is improved, and the service life of the aluminum pipe is prolonged.

The embodiment of the invention provides a heat exchanger machining method and a heat exchanger. The heat exchanger machining method comprises the steps that a heat exchange pipe and a first pipe are assembled, the heat exchange pipe and the first pipe are connected, the heat exchange pipe is made of stainless steel, and the first pipe is made of stainless steel; welding the heat exchange tube and the first tube; the fins and the heat exchange tubes are assembled, specifically, at least part of the fins are installed between the adjacent heat exchange tubes, and the fins are made of aluminum or aluminum alloy; welding the heat exchange tubes and the fins; before the heat exchange tube and the fins are assembled, an aluminum material or a nickel material is arranged on at least one part of the surface of the heat exchange tube in a covering mode to form a coating. According to the machining method, welding of the heat exchanger is achieved, the welding reliability and the reliability of the heat exchanger are improved, and the heat exchanger has good corrosion resistance. The invention further provides the heat exchanger. The corrosion resistance of the heat exchanger and the heat exchange performance of the heat exchanger are improved.

The invention relates to the technical field of heat exchangers, and discloses an aircraft comprehensive heat exchanger which comprises a shell, a longitudinal vortex generator fin set and a micro-channel liquid cooling circulation system, a flow guide cavity for containing cooling liquid is formed in the shell, and the shell and an aircraft belly fairing are integrally installed; the longitudinal vortex generator fin set comprises a plurality of fins of a three-dimensional twisted structure, every two fins symmetrically arranged in the horizontal direction form a fin unit, the fin units are fixed to the face, away from an aircraft belly fairing, of the shell in rows, the twisting angle theta of the fins ranges from 30 degrees to 60 degrees, the ratio of the twisting wavelength to the height of the fins ranges from 0.5 to 2.5, and the width of the fins ranges from 0.5 to 2.5. The micro-channel liquid cooling circulation system is arranged in the shell and comprises a first-stage main channel arranged in the arrangement direction of the fin units, a second-stage branch channel comprises a plurality of rhombic channels penetrating through the first-stage main channel, and a third-stage micro-channel is parallel to the first-stage main channel and penetrates through the second-stage branch channel and can optimize the heat exchange characteristic.

A first heat exchanger (1) is provided with a heat exchanger body (11) that forms a first heat medium flow path (10) through which heat medium (M) flows. Similarly, a second heat exchanger (2) is provided with a heat exchanger body (21) that forms a second heat medium flow path (20) through which the heat medium (M) flows. The heat exchanger bodies (11, 21) are buried in the ground. The heat exchanger body (11) is configured from an aluminum-alloy extruded material. The heat exchanger body (21) is configured from an aluminum-alloy sheet metal material.

The utility model relates to a heat exchanger rib plate structure, a heat exchange structure and a heat exchange energy storage device. The rib plate structure comprises a metal plate and a rib plate integrally formed on the plate face of the metal plate. The rib plate comprises a first side wall and a second side wall, and the first side wall and the second side wall are attached to each other. According to the rib plate structure of the heat exchanger, the metal plate is directly machined to form the rib plate, so that the rib plate structure is very convenient to manufacture and install; the two side walls of the rib plate structure are attached to each other, the direct contact area between the rib plate structure and a heat source is increased, and the heat dissipation efficiency is effectively improved.

The invention relates to a heat exchange device comprising: a heat exchange matrix (50) accommodated in a circulation enclosure and formed of a plurality of heat exchange pipes, each pipe comprising at least one duct extending mainly in a longitudinal direction, each duct at least partially defining a flow channel for a second heat transfer fluid, at least one manifold (20) comprising at least one duct portion (22, 23, 24) extending mainly in a plane orthogonal to the longitudinal direction, the manifold comprising a plurality of ports (30), at least one fluid distribution header (40) configured to allow a second heat transfer fluid to flow between at least one port of the manifold and at least one duct, each port of the manifold opening into a distribution header. The invention relates to an air conditioning system and to an aircraft comprising such a heat exchange device.

Systems and methods for thermal management using matrix coldplates are disclosed. One illustrative method may comprise directing a flow of coolant through a coldplate comprising a plurality of parallel passages by selectively connecting portions of the parallel passages to one another to create one or more regions of parallel flow, serial flow, or blocked flow in the coldplate. Selectively connecting portions of the parallel passages may comprise machining a plurality of transverse passages into the cold plate such that each of the transverse passages intersects at least some of the parallel passages. Valves may be installed to interact between the parallel and transverse passages to create and modify the different flow regions.

The heat exchange tube comprises a tube body, a plurality of tooth structures spirally extending in the length direction of the tube body are arranged on the inner circumferential wall of the tube body, the tooth structures are arranged in the circumferential direction of the tube body at intervals, the ratio of the tooth number of the tooth structures to the tooth height of the tooth structures is 1000-2590.7, and the outer diameter of the tube body is 6.8-7.5 mm. According to the heat exchange tube, the tooth structures spirally extending in the length direction of the tube body are arranged on the inner circumferential wall of the tube body, the multiple tooth structures are arranged in the circumferential direction of the tube body at intervals, and for the heat exchange tube with the outer diameter of the tube body being 6.8 mm-7. 5 mm, the ratio of the tooth number of the tooth structures to the tooth height of the tooth structures is 1000-2590.7; the pressure drop of the heat exchange tube can be reduced, the flow path can be simplified under the condition that the heat exchange performance is not changed, and the complexity of the manufacturing process is reduced.

This application relates to the field of server heat dissipation technology, and in particular to a server heat dissipation module, including a substrate, a heat-conducting plate, a first heat pipe, a first heat dissipation component, a second heat dissipation component, and a third heat dissipation component. Multiple first heat dissipation fins are formed at opposite ends of the substrate. The middle portion of the first heat pipe contacts the top end of the heat-conducting plate. The first heat dissipation component is mounted on a first support portion. The second heat dissipation component is mounted on a second support portion. The third heat dissipation component is mounted at the middle of the top end of the substrate, contacting the middle portion of the first heat pipe. The heat generated by the component to be cooled is first transferred to the middle portion of the heat pipe via the heat-conducting plate, and then to the opposite ends of the heat pipe. The heat in the middle of the heat pipe is conducted into the air via the third heat dissipation component, the heat at one end is conducted into the air via the first heat dissipation component, and the heat at the other end is conducted into the air via the second heat dissipation component. Overall, this significantly improves the heat dissipation effect and efficiency of the server heat dissipation module.

The present disclosure provides a heat exchanger (100) for a heating, ventilation, and / or air conditioning (HVAC) system (30), the heat exchanger comprising: a header (106) having a longitudinal axis (160); a first plurality (114) of microchannel tubes (102) coupled to the header (106), wherein each microchannel tube (102) of the first plurality (114) of microchannel tubes (102) has a first width (150); and a second plurality (116) of microchannel tubes (102) coupled to the header (106), wherein each microchannel tube (102) of the second plurality (116) of microchannel tubes (102) has a second width (152) that is greater than the first width (150).

This utility model discloses a finned evaporator for household refrigerators, relating to the field of refrigerator refrigeration equipment technology. The finned evaporator for household refrigerators includes a transmission unit, fins, and a fixing unit. The fins and fixing unit are sleeved on the outside of the transmission unit, with the fins located inside the fixing unit. The fixing unit includes a fixing component, a clamping component, and a fixing bolt. The fixing component is provided with a first clamping piece. This utility model, through the cooperation of the fixing component, clamping component, and fixing bolt in the fixing unit, can firmly fix the fins and transmission unit, preventing loosening, ensuring stable operation of the evaporator, reducing noise caused by loosening, and ensuring cooling effect. The connecting piece and positioning piece on the fixing component facilitate the installation and positioning of the evaporator with other refrigerator components. At the same time, the structural design of the fixing unit simplifies the installation and disassembly process of the evaporator, facilitating later maintenance and repair.

The invention relates to a heat exchange device, comprising: - a main member (10) provided with a planar assembly face, comprising aluminium, and forming a fluid circulation channel leading into a port arranged on the assembly face; - a connection end piece comprising a connection base, the connection base comprising a connection face through which a connection channel opens, the connection base being assembled with the main member (10) by means of an adhesive substance linking an assembly zone of the assembly face that is peripheral to the port to a connection zone of the connection face that is peripheral to the port, the opening and the port being in correspondence with each other, the adhesive substance comprising an adhesive that is either epoxy or polyurethane or acrylic or hybrid, the hybrid adhesive comprising at least two chemical functions chosen from one of epoxy, cyanoacrylate, acrylic and polyurethane.

The utility model discloses a kind of waste heat grading recovery devices for generator set, including waste heat grading recovery device;The utility model is provided with waste heat grading recovery device, in the process of operation, high-temperature waste gas will be circulated by flue pipe, with the aid of baffle plate, waste gas can be guided to repeatedly flow along the inside of flue pipe, increase the path length of waste gas, extend the residence time of waste gas in flue pipe, to improve the heat recovery effect, by being respectively provided with one heat exchange tube and second heat exchange tube in the both ends of flue pipe, in the process of waste heat recovery, heat exchange medium enters from the top port of one heat exchange tube and second heat exchange tube, after completing heat exchange with the surface of flue pipe, it is discharged from the bottom port of one heat exchange tube and second heat exchange tube, to realize waste heat recovery, the waste gas of different pipe section position of flue pipe exists temperature gradient section, one heat exchange tube and second heat exchange tube can use adaptive heat exchange medium according to the waste gas of different temperature gradient section, realize grading management, improve heat recovery efficiency.

The utility model provides a plate-fin heat exchanger with a protective structure. The plate-fin heat exchanger with the protection structure comprises a heat exchanger body, a plurality of sets of fins are evenly installed on the outer wall of the heat exchanger body, annular discs are installed on the outer walls of the left end and the right end of the heat exchanger body, and a plurality of sets of limiting grooves are evenly formed in the side walls of the two sets of annular discs; the inner wall of each limiting groove is connected with a limiting block in an inserted mode, and the outer wall of each limiting block is provided with a rectangular plate. According to the plate-fin heat exchanger with the protection structure, before the heat exchanger body is carried, the locking assemblies are controlled to move away from the inlet ends of the limiting grooves, and then the rectangular plates provided with the limiting blocks are sequentially inserted into the limiting grooves; and meanwhile, the left sides and the right sides of the fins are correspondingly wrapped by the two sets of partition plates installed on the rectangular blocks on the rectangular plates, the fins are protected against damage of external pressure, and workers cannot be scratched by the sharp fins in the carrying process.

The invention discloses a sealed phase change heat exchanger structure for guiding liquid through a capillary wick, and belongs to the technical field of phase change heat exchangers, the sealed phase change heat exchanger structure comprises a machine body, a hot air pipe and a cold air pipe, the hot air pipe and the cold air pipe are installed on the two sides of the machine body in a sealed mode, heat pipes are connected to the inner ends of the hot air pipe and the cold air pipe in a sealed mode, and a row of cooling fins are correspondingly arranged on the side, close to the machine body, of a fan. And one row of radiating fins are arranged on the outer side surface of the machine body. According to the sealed phase change heat exchanger structure for guiding liquid through the capillary wick, the movable frames are arranged, the driving motor is started to drive the two rotating shafts to rotate through the two transmission belts at the same time, and then the two rotating shafts drive the two reciprocating lead screws through the two bevel gear sets at the same time to drive the two movable frames to move in a reciprocating mode; at the moment, a row of cleaning fins arranged on the inner sides of the two movable frames can conduct reciprocating movement cleaning on a row of cooling fins, and it can be avoided that external dust and impurities adhere to the surfaces of the cooling fins, and the later cooling efficiency is affected.

This invention relates to the field of alloy technology, specifically disclosing a microalloyed copper alloy tube and its preparation process. The copper alloy tube is composed of the following components by mass percentage: Ni 0.05%-0.15%, Sn 0.05%-0.15%, Fe 0.01%-0.1%, P 0.02%-0.04%, with the balance being Cu and unavoidable impurities. The mass ratio of Sn to Ni is controlled between 0.5 and 3. It possesses a single face-centered cubic α-phase crystal structure, with an isometric grain ratio ≥85% in the microstructure and an average grain size of 10-20 μm. The preparation process achieves a three-dimensional strengthening effect of solution treatment, precipitation, and grain refinement. The product exhibits a tensile strength of 250-270 MPa, an elongation after fracture ≥45%, and a yield strength ratio of 0.32-0.36, combining high strength, low yield strength ratio, excellent machinability, and corrosion resistance. It is energy-efficient and easily mass-produced.

A vehicle-mounted heat exchanger (100) includes a heat exchanging unit (108) comprising a plurality of plate fins (101) which are plate-shaped and are disposed parallel to one another, and a plurality of tubes (102) which penetrate through the plurality of plate fins and through which a refrigerant flows. If a refrigerant flow passage through which the refrigerant flows in the heat exchanging unit is defined as a path (110 to 150), the plurality of tubes form at least one path. A most downstream tube (121, 141) positioned most downstream, in the refrigerant flow, within the at least one path is disposed on an airflow most downstream side of the heat exchanging unit in an airflow direction parallel to a surface direction of the plurality of plate fins.

This invention provides an apparatus for heat exchange comprising a plurality of fins, and a heat transfer coil in the form of a plurality of oblong sectional tubes being arranged in a single array. The fins are arranged along a longitudinal portion of the oblong sectional tubes substantially perpendicularly for guiding incoming convective fluid towards all the oblong sectional tubes for heat exchange to be performed thereupon. Furthermore, the oblong sectional tubes of the heat transfer coil each has a substantially rectangular cross-section with round edges, or oval or elliptical cross-section, and are operable to be installed with a tilt angle for them to be tilted with a major axis of the oblong sectional tube being in respect to a direction of the incoming convective fluid flowing through the heat transfer coil. A related system and method involving the apparatus are further described.

The utility model relates to the technical field of radiator structures, and discloses a radiating area adjustable structure of a heat supply radiator, which comprises a heating medium inlet pipe, a modularized radiator, a first three-way valve and a second three-way valve, and the other end of the heating medium inlet pipe is connected with a filtering assembly through a flange, the modular radiator comprises two vertical supporting plates, and a plurality of heating pipes are fixedly connected between the two vertical supporting plates. The first three-way valve and the second three-way valve are matched with the backflow pipe, the three-way pipe, the double-end pipe and other parts, the heat supply area can be flexibly adjusted, when the second three-way valve is operated to close channels at the two ends and connect the heat supply pipe at the left end and the second backflow pipe, high-temperature media do not circulate in the group of modularized radiators on the rightmost side, and the heat supply area is reduced; if the first three-way valve continues to be operated to close the channels at the two ends, the left heat supply pipe and the first backflow pipe are connected, and the heat supply area can be further reduced.

The present invention relates to a heat exchange device comprising: a main part (10) provided with a flat assembly surface, the main part (10) comprising aluminium and forming fluid circulation channels leading to ports arranged on the assembly surface; and a connecting end piece comprising a connection base, the connecting base comprising a connection surface into which the connection channels open, the connecting base being assembled with the main part (10) by means of an adhesive substance linking an assembly zone of the assembly surface in the periphery of the ports to a connection zone of the connection surface in the periphery of the ports, the openings and the ports corresponding to each other, the adhesive substance comprising an adhesive substance which is either an epoxy, a polyurethane, an acrylic or a hybrid, the hybrid adhesive substance comprising at least two chemical functional groups selected from one of the following: epoxy, cyanoacrylate, acrylic and polyurethane.

The utility model discloses warehouse dehumidifying and cooling equipment, which relates to the technical field of tobacco leaf storage and comprises a shell mechanism, a dust removal mechanism is arranged on the side surface of the shell mechanism, an air cooling fan is arranged on the top surface of an inner bottom plate of the shell mechanism, and a dehumidifying mechanism is arranged on the left part of the inner wall of the shell mechanism. And a cooling mechanism is arranged at the right part of the inner wall of the shell mechanism. The dust removal mechanism is arranged to adsorb dust in the warehouse, the dust is prevented from falling on the surfaces of tobacco leaves, the tobacco leaves are prevented from being polluted, and the quality of the tobacco leaves is reduced. The dust on the surfaces of the tobacco leaves can be sucked into the dust collection hopper from the through holes in the surface of the dust collection hopper by suction airflow generated by the fan only by starting the fan when the dust collection hopper needs to be used. Then the dust passes through a second connecting pipe and falls into a dust collecting box, then a filter in the dust collecting box is started, the filter discharges the dust and airflow generated by a fan out of the device through an air outlet, and then the dust is separated into a dust collecting drawer.

A high-temperature-resistant and impact-resistant flat tube heat exchanger comprises an outer cylinder, an inner cylinder located in the outer cylinder and connected with the outer cylinder, a plurality of built-in spiral piece flat tubes installed on the inner wall of the inner cylinder, a reinforcing ring plate installed on the outer wall of the outer cylinder and a support reinforcing plate installed on the inner wall of the inner cylinder. The support reinforcing plates are arranged on the two sides of each built-in spiral piece flat pipe, the support supporting plates are arranged on the support reinforcing plates, the flat pipe reinforcing plates are arranged on the two side faces of each built-in spiral piece flat pipe, and the flat pipe connecting plates are arranged on the support supporting plates, located between the two flat pipe reinforcing plates and arranged on the two flat pipe reinforcing plates. The high-temperature-resistant impact-resistant flat tube heat exchanger is high in structural strength, high in impact resistance, reliable in protection, high in safety performance, long in service life, good in heat transfer effect and resistant to high temperature. The flat tube heat exchanger can be widely applied to built-in spiral sheet flat tube heat exchangers.

The utility model relates to the technical field of finned tubes, and discloses a rotating direction type laser welding finned tube which comprises a main body assembly. The main body assembly comprises a pipe body, and flange plates are symmetrically arranged on the outer side wall of the pipe body; the heat dissipation fins are arranged on the pipe body, and the number of the heat dissipation fins is multiple; a mounting assembly is arranged on the pipe body, and the mounting assembly comprises a first shell, a second shell, a third shell and a fourth shell; the heat-conducting fin welding device has the advantage that heat-conducting fins can be conveniently welded, a plurality of heat-conducting fins are welded on the first shell and the second shell, a pipe body is prevented from being damaged during welding, then an operator presses the limiting blocks on the two sides, the limiting blocks on the two sides extrude the first springs on the limiting blocks and enter the second box body on the first box body, and the heat-conducting fins are welded to the first box body and the second box body. And then the operator can move the second box body out of the limiting frame, so that the first shell and the second shell are separated, the operator can conveniently carry out repair welding on the cooling fins on the first shell and the second shell, and the problem that a pipe body is prone to being damaged by welding of the heat-conducting fins is solved.