A heat exchanger, including at least one flat pipe, each flat pipe is provided with a refrigerant cavity, an inlet, an outlet and two through holes, the inlet and the outlet are located at two ends of the refrigerant cavity, respectively, and both the inlet and the outlet communicate with the refrigerant cavity; the two through holes are respectively located at two ends of the refrigerant cavity, and the two through holes do not communicate with the refrigerant cavity. The flat pipe is provided with the inlet, the outlet and two through holes, when the plurality of flat pipes are matched with liquid collecting pipes (liquid inlet pipes or liquid outlet pipes) of the heat exchanger, different flat pipes can choose to use the inlets or outlets to communicate with the liquid collecting pipes, and the through holes are able to be used to avoid the liquid collecting pipes.

Some embodiments of the present disclosure provide a heat exchanger, including: at least three heat exchange tube groups, herein the heat exchange tube groups are communicated in sequence, and at least two heat exchange tube groups are superposed mutually along a direction in which a heat exchange airflow flows, a medium sequentially flows through each heat exchange tube group and forms a U-shaped trajectory; an intermediate adapter portion, herein at least two heat exchange tube groups are communicated with each other by means of the intermediate adapter portion, the intermediate adapter portion includes at least two adapters and an adapter tube communicated with the two adjacent adapters, herein the adapter is composed of a first plate and a second plate, the adapter tube is an extrusion-formed flat tube, and a width direction of the adapter tube is perpendicular to a width direction of the heat exchange tube groups.

A method of assembling a heat exchanger includes the steps of fluidly connecting a plurality of first heat exchanger tubes to a first connecting tube portion at an assembly location to form a first subassembly, fluidly connecting a plurality of second heat exchanger tubes to a second connecting tube portion at the assembly location to form a second subassembly, transporting the first subassembly and the second subassembly from the assembly location to an installation location, and connecting the first subassembly to the second subassembly at a single connection point between the first connecting tube portion and the second tube connecting portion.

An air cooled condenser, and methods of manufacturing and field assembly of air cooled condensers in which one half of the primary heat exchanger coils are shop fitted with a length of steel configured to quickly and easily mate, during field assembly, with an opposing primary heat exchanger coil of standard configuration, thereby reducing material, shipping, and handling costs, improving positioning and orientation of HECs during assembly, and reducing the requirement for expensive field welding.

A method for assembling a brazing ring on a return tube constituting a refrigerant passage of a heat exchanger according to an embodiment of the present disclosure includes performing a pipe shrinking process on a straight portion of the return tube, coupling the brazing ring on the return tube through a return tube assembly device, and performing a pipe expanding process on the straight portion of the return tube to which the brazing ring is coupled. The coupling of the brazing ring on the return tube is performed using the return tube assembly device.

A heat exchanger tube includes a curved wall, a leg, and a joint. The leg extends orthogonal to an end of the curved wall. The joint connects the curved wall and leg. A plurality of dimples is aligned along the joint.

A heat exchanger module comprises several U-tubes for a first fluid flow, the U-tubes having two straight sections connected by a U-shaped portion. Inlet ends of the several U-tubes are connected with an inlet collector tube and outlet ends of the several U-tubes are connected with an outlet collector tube. The two straight sections of the U-tubes have a different length such that a longitudinal axis of the inlet collector tube and a longitudinal axis of the outlet collector tube are arranged at different heights with respect to a height of the heat exchanger module. Also provided is a method for manufacturing the heat exchanger modules and a tubular heat exchanger comprising a plurality of heat exchanger modules.

A heat exchanger includes a main body portion and a cover. The main body portion includes a heat exchange core, a collecting pipe portion and a first mounting shell. The collecting pipe portion includes a first collecting pipe portion and a second collecting pipe portion. Both the first collecting pipe portion and the second collecting pipe portion are provided with mounting end plates. Two ends of the first mounting shell are hermetically connected to the mounting end plates by brazing. The first mounting shell encloses part of the heat exchange core in a circumferential direction. Two ends of the cover are hermetically connected to the mounting end plates by bonding. The cover and the first mounting shell are arranged in an enclosing manner in the circumferential direction. The heat exchanger improves stability and reliability. A manufacture method of the heat exchanger is also disclosed.

A thermal module assembling structure includes an aluminum base seat which has a heat absorption side, a heat conduction side and a connection section. The connection section is selectively disposed on the heat absorption side, the heat conduction side or embedded in the aluminum base seat (between the heat absorption side and the heat conduction side). The connection section is correspondingly connected with at least one copper heat pipe. A copper embedding layer is disposed on a portion of the connection section, which portion is in contact and connection with the copper heat pipe. A welding material layer is disposed between the copper embedding layer and the copper heat pipe, whereby the aluminum base seat and the copper heat pipe can be more securely connected with each other. The conventional chemical nickel plating is replaced with the copper embedding layer so as to improve the problem of environmental pollution, etc.

A heat dissipation device assembly includes an aluminum base seat, an aluminum radiating fin assembly and at least one U-shaped copper heat pipe, which is upright arranged or horizontally arranged. The aluminum base seat has at least one connection section. A copper embedding layer is disposed on the connection section. The aluminum radiating fin assembly is assembled and disposed on the aluminum base seat. The copper heat pipe has a heat dissipation section and a heat absorption section respectively connected on the aluminum radiating fin assembly and the connection section of the aluminum base seat. By means of the copper embedding layer, the aluminum base seat and the copper heat pipe can be directly welded and connected with each other without chemical nickel treatment.