Problem To suppress the distribution of adsorption materials and binders between a heat-transfer member and a heat-transfer member from being disproportioned.

SOLUTION TO PROBLEM There is provided a method for preparinq an adsorption device in which activated carbons are held in an area of accommodating a plurality of heat-transfer members 34 arranged by intervals with each other in a main body part 31. The method includes a filling step (step 102) for filling a slurry filler 45, in which porous particles 41 and binder resins 42 are dispersed in a solvent 46, into the area , to fill the filler 45 into at least a clearance S between the heat-transfer member 34 and the heat-transfer member 34, an evaporating step (step 103) for heating the main body part 31 in which the filler 45 is filled in the area in a first-temperature range to evaporate the solvent 46, and a hardening step (step 104) for heating the main body part 31 in which the solvent 46 is evaporated in the evaporating step (step 103) in a second temperature range higher than the first temperature range to harden the binder resins 42.

Air-to-air heat exchanger for ventilation systems with two countercurrent air flows disposed inside a cylindrical housing, a first air flow circulating inside the heat exchanger inside closed pipes, while the second air flow is in spaces between the pipes and cylindrical housing, and a fan moving the countercurrent air flows and disposed at one end of the cylindrical housing, with the fan including concentric inner and outer rings separated by a wall for moving air in opposite directions, a bunch of straight, parallel pipes whose end elements at the fan side are tightly gathered together, in the end of a cylindrical wall and, on the opposite side, in the end of a cylindrical pipe fitting, and between end elements, taper into middle sections between which are spaces, and a sleeve lining the inner wall of the housing at the middle sections and constricts the inner diameter of the housing.

Disclosed herein is a heat exchanger, and more particularly to a heat exchanger having an improved refrigerant flow structure. The heat exchanger includes a plurality of tubes arranged in a first row and a second row, a first header connected to one end of the plurality of the first row tubes and a second header connected to one end of the plurality of the second row tubes, a first baffle dividing an inside of the first header into a first channel and a second channel in a vertical direction and dividing an inside of the second header into a third channel and a fourth channel in a vertical direction, an inlet pipe connected to the second channel to allow the refrigerant to flow therein, and an outlet pipe connected to the third channel to discharge the refrigerant.

Disclosed is a shell and tube heat exchanger that includes, inter alia, an elongated cylindrical shell that defines a longitudinal axis for the heat exchanger and an internal chamber. The shell has at least one feed gas inlet and feed gas outlet formed in an outer wall for allowing a feed gas to enter and exit the internal chamber. At least one tube sheet is associated with an end of the elongated shell and a plurality of circular baffles are longitudinally spaced apart within the internal chamber of the shell for redirecting feed gas flow within the internal chamber. The heat exchanger also includes a tube bundle which has a plurality of tubes for allowing effluent gas to traverse from an inlet plenum through the internal chamber of the shell to an outlet plenum. Additionally, a shroud distributor is arranged and configured to direct feed gas flow from the feed gas inlet to the internal chamber proximate the at least one tube sheet. The shroud distributor has at least one angled cut formed in an end thereof for distributing the flow of feed gas.

An air conditioner and a heat exchanger therefor are provided. The heat exchanger may include a shell; an injection pipe to guide a heat source fluid to an inside of the shell; a first refrigerant tube formed with a first spiral tube; a second refrigerant tube formed with a second spiral tube having a radius larger than a radius of the first spiral tube; and a discharge pipe to which the heat source fluid heat-exchanged with a refrigerant is discharged. The first refrigerant tube and the second refrigerant tube may be connected in parallel, and the second spiral tube may have a larger pitch between turns and a smaller number of turns than the first spiral tube. The heat exchanger may provide a simple structure and a high heat-exchange performance.

The present invention relates to a heat exchange device for exchanging heat between two fluids circulating through insulated conduits. In the preferred example the first fluid is a hot gas originating from an exhaust gas recirculation (EGR) system, and the second fluid is a coolant liquid used for removing heat from the hot gas. The device according to the invention has a simple and cheap construction, lacking a shell, formed by a plurality of extruded aluminum profile segments attached by clad plates arranged perpendicularly giving rise to a very compact and light-weight configuration when it is in an operating mode.

A three-dimensional heat conducting structure includes a vapor chamber that has a casing with at least one through hole and is in fluid communication with an interior of the casing. At least one heat pipe having an open end that is inserted into the through hole and is in fluid communication with the interior of the casing. Further, a rim that is disposed on an outer surface of the vapor chamber, wherein gaps between the rim and the heat pipe are sealed by laser welding, and a welding ring is soldered to further secure the connection between the heat pipe and the vapor chamber.