A water-cooling radiator includes a first water collection box, a second water collection box and a plurality of radiating pipes. A water pump chamber is disposed in a box body, and is in cooperation with a water pump, an impeller and a water pump cover to form a water pump structure with good airtightness, so that the water pump and the first water collection box are effectively combined. The flow speed of water in the water-cooling radiator is effectively accelerated, which improves the heat dissipation efficiency. The overall heat dissipation effect of the product is very good.

A water-cooling heat dissipation device includes a water-cooling radiator. The water-cooling radiator includes a radiating pipe unit, a water outlet reservoir, and a water inlet reservoir. The water-cooling radiator is provided with a first water pump and a second water pump. Each water pump is configured to pump cold water in a corresponding water outlet chamber to a corresponding water-cooling block to exchange heat and become hot water, hot water flows back to a corresponding water inlet chamber and flows into the corresponding radiating pipe unit to be cooled by radiating fins, and then cold water flows into the corresponding water outlet chamber.

A heat exchanger includes: heat transfer tubes aligned with one another; a header connected to end portions of the heat transfer tubes; and fins joined to the heat transfer tubes. When viewed in a longitudinal direction of the header and when the heat exchanger is used as an evaporator, the header is divided into: a circulation space including a first space in which refrigerant flows in a first direction along the longitudinal direction of the header and a second space in which the refrigerant flows in a second direction opposite to the first direction along the longitudinal direction; and an insertion space into which the heat transfer tubes are inserted. The header includes: a circulation division plate that divides the first space from the second space; and an insertion space forming plate that divides the circulation space from the insertion space.

In a header plate structure of heat exchangers having a core divided in plurality, a flat tube is inserted into each of the tube insertion holes having a burring, which is formed in a header plate; the flat tube is joined at an inner surface in the vicinity of a top portion of the burring; a burring with height H1 is formed to a long side portion of a dummy tube insertion hole; and a burring with height H2 is formed to a long side portion of an end portion tube insertion hole adjacent to the dummy tube insertion hole, in which height H2 of the burring of the end portion tube insertion hole has been formed higher than the height H1 of the burring of the dummy tube insertion hole.

A heat exchanger includes a case, fins, and heat transfer tubes. Combustion exhaust gas passes downward in the case. The fins are disposed at a lower portion of the case and arranged in the first direction. Each of the fins includes a first end and a second end that is an opposite end from the first end in a second direction intersecting the first direction. Each of the fins includes through holes in which the heat transfer tubes are inserted. Each of the fins includes heat receiving portions arranged in the second direction and connecting portion connecting the heat receiving portions. The heat receiving portions include a first heat receiving portion disposed at the first end. The first heat receiving portion includes a first recessed portion recessed from an outer edge of an upper part of the first heat receiving portion.

A heat exchanger includes plural heat transfer tubes disposed with a specified spacing from each other in the up and down direction, and a distributor configured to distribute refrigerant to the heat transfer tubes. The distributor includes a body part, and plural flow-splitting parts, the body part including a first passage in which refrigerant flows upward, the flow-splitting parts communicating with the first passage and with one of the heat transfer tubes. The flow-splitting parts include one or more first flow-splitting parts each communicating with a first heat transfer tube, which is a higher positioned heat transfer tube. The flow-splitting parts include one or more second heat transfer tubes each communicating with a second heat transfer tube positioned below the first heat transfer tube. The refrigerant inlet of the first flow-splitting part communicates with the first passage at a location below the refrigerant inlet of the second flow-splitting part.

A heat exchanger includes an inlet tank (10a) connected to and in fluid communication with an inlet pipe (12a) for ingress of a coolant therein, an outlet tank (10b) connected to and in fluid communication with an outlet pipe (12b) for egress of coolant there from. The heat exchanger further includes heat exchange tubes (20) and a tubular element (30) to configure fluid communication between the inlet tank (10a) and the outlet tank (10b). A first side of the outlet tank (10b) is complimentary to and connected to the outlet pipe (12b) and an opposite second side of the outlet tank (10b) is complimentary to and aligned with the tubular element (30). The tubular element (30) and the outlet pipe (12b) are of different cross sections, wherein shape of the outlet tank (10b) transforms smoothly between those cross sections along fluid path.

A reservoir and a liquid-cooling radiator are disclosed. The reservoir includes a reservoir body and at least one partition mounted in the reservoir body. The reservoir body has an end panel and a peripheral side panel that is integrally formed and connected with the end panel. The peripheral side plate extends from a peripheral edge of the end panel in a same direction. A liquid chamber is formed and surrounded by the end panel and the peripheral side panel. The peripheral side plate has two side plate portions located on opposing two sides of the end panel. The reservoir body is formed with U-shaped strips extending along inner walls of one side plate portion, the end panel and the other side plate portion in sequence. The U-shaped strips are spaced and arranged in pairs. A groove is formed between the paired U-shaped strips.

An integrated liquid-cooling radiator includes a first reservoir, a second reservoir and a plurality of radiating pipes. The first reservoir is made of a heat-dissipating metal material. A first partition is provided in the first reservoir to divide an inside of the first reservoir into a first liquid inlet chamber and a first liquid outlet chamber. A bottom of the first reservoir is provided with a thermally conductive copper sheet. By arranging the thermally conductive copper sheet on the first reservoir to form an integrated structure, the product has a compact structure.

A stacked panel tube bundle for an air cooled steam condenser having two sets of condensing tubes, one set arranged above the other, the first (lower) set of tubes in direct fluid communication with a combined steam delivery/condensate collection manifold at a bottom end and in indirect fluid communication with a non-condensable collection manifold via an L-shaped extension member; the second (upper) set of tubes in direct fluid communication with the non-condensable collection manifold at the top, and in indirect fluid communication with the combined steam delivery/condensate collection manifold via an L-shaped extension member.