A heat transfer cube includes a housing at least partially bounding a compartment, the housing having a first end with a first opening formed thereat that communicates with the compartment and an opposing second end with a second opening formed thereat that communicates with the compartment. A coil unit is disposed within the compartment between the first opening and the opposing second opening. The coil unit includes a first plate, a last plate, and a plurality of tubes each having a first end connected to the first plate and an opposing second end connected to the second plate. The housing further includes an inlet communicating with the first end of each of the plurality of tubes and an outlet communicating with the second end of each of the plurality of tubes.

A heat exchanger having a drainage member (1) mounted on an open end (322) of a heat-transfer tube (32), wherein the drainage member (1) contains a flow guide portion (11) including an insertion portion (11a) configured to be inserted into the heat-transfer tube (32) from the open end (322), and a projecting portion (11b) projecting toward an outside of the heat-transfer tube (32) from the open end (322) and extending downward.

A heat exchanger includes a drain assembly having a housing and a drain plug. The drain plug is movably disposed within the housing to extend along the same direction as a drain passage formed in the housing. The drain plug is movable along that same direction to selectively open or close the drain passage. Accordingly, the heat exchanger may be drained with a controllable directional flow.

The invention relates to a removal device (10) for removing a fluid from a refrigeration system, comprising a cooling device (11), through which the fluid is to flow and which has a pipeline assembly (12), which has a plurality of pipeline elements (24, 26) connected to each other, a fluid inlet (28) arranged above the pipeline elements, and a fluid outlet (30) arranged below the pipeline elements, the removal device having a compressor (14), which is arranged before the cooling device (11) in the flow direction and through which the fluid can flow and which is connected to the fluid inlet (28), is easier to clean because the pipeline elements are each arranged at an inclination of an angle (alpha) from the horizontal in such a way that all fluid entering through the fluid inlet (28) is moved to the fluid outlet (30) by gravity.

A header for a heat exchanger and method for cleaning a heat exchanger in a loop without disconnecting loop components is provided. The header is in flow communication with the heat exchanger for distributing fluid through a plurality of adjacent channels. The header is connected between a main heat exchanger inlet nozzle and a channel flow distributor. A filter element is disposed within the header between the nozzle and channel flow distributor. Under normal operation, the filter element removes particulates and fouling material from the main flow stream before it enters the heat exchanger channels. During the cleaning process, fluid is injected on or through the filter element to remove particulates and fouling material through at least one outlet port. The header arrangement allows the filter element to be cleaned in place without draining the system and disconnecting the heat exchanger or other components from the flow loop.

A manifold for a heat exchanger and a heat exchanger wherein the manifold includes: a pipe having an end portion; an end cover disposed at the end portion of the pipe and closing the end portion of the pipe to define an inner cavity in the pipe; and a discharge passage including: a first end opening into the inner cavity of the pipe, and a second end located at or adjacent to an end of the manifold and positioned at an outer peripheral surface of the manifold. The first end of the discharge passage is located on a side of the end cover facing the inner cavity of the pipe. According to embodiments of the disclosure, the stacking mounting of the heat exchangers in the axial direction of the manifold and the mounting of the heat exchanger with the end cover of the manifold contacting the ground can be achieved.

A heat exchanger includes: a heat transfer tube allowing a refrigerant to flow; and a fin having through holes that are aligned in columns in a second direction crossing a first direction in which air flows. The through holes include: first through holes each penetrated by the heat transfer tube in a thickness direction of the fin; and second through holes not penetrated by the heat transfer tube. The fin includes: a first region having the first through holes; and a second region having the second through holes. One or both ends of the second region in the first direction are adjacent to the first region. Both ends of the second region in the second direction are adjacent to the first region.

A heat exchanger that exchanges heat between a refrigerant and air, includes: flat tubes disposed in a first direction intersecting with a longitudinal direction of cross sections of the flat tubes and through which the refrigerant flows; first heat transfer fins that contact the flat tubes and are disposed on a windward side of the flat tubes; and second heat transfer fins that contact the flat tubes and are disposed on a leeward side of the flat tubes. The first heat transfer fins are inserted toward the flat tubes from a side of first ends in the longitudinal direction. The second heat transfer fins are inserted toward the flat tubes from a side of second ends in the longitudinal direction.

A method of forming an integral drain for a heat exchanger is provided. The method includes forming a plurality of passage walls to define a plurality of passages with an additive manufacturing process, each of the passage walls having a non-linear portion. The method also includes integrally forming a drain wall with at least one of the passage walls with the additive manufacturing process to define a drain for each of the plurality of passages, the drain wall located proximate the non-linear portion of each of the plurality of passage walls.

An integral drain assembly for a heat exchanger includes a plurality of passage walls defining a plurality of passages, each of the passage walls having a non-linear portion. Also included is a drain wall integrally formed with at least one of the passage walls to define a drain for each of the plurality of passages, the drain wall located proximate the non-linear portion of each of the plurality of passage walls.