A protection device 1 for a heat exchanger, comprising a grid 10 with an upstream surface 11 and a downstream surface 12, both located on opposite sides of the grid 10, the grid 10 being attachable to the heat exchanger 40 with attachment means 11 so that the downstream surface 12 can face a side of the heat exchanger 40, wherein the protection device 1 further comprises a shock absorber 20 attached to the grid 10 so that the shock absorber 20 least partly protrudes from the downstream surface 12 of the grid 10.

A reversible flow heat exchange system includes a heat exchanger system that includes a canister configured to receive a first fluid from a machine and a heat exchanger disposed within the canister. The reversible flow heat exchange system also includes a cooling system coupled to the heat exchanger and configured to circulate a second fluid between the heat exchanger system and the cooling system and a reversing valve coupled to the heat exchanger and configured to selectively direct a flow of the first fluid in a first direction through the canister and in a second direction through the canister that is opposite the first direction.

A liquid-cooling heat dissipation system capable of regulating water quality includes a first liquid inlet, a first liquid outlet, a heat exchange unit, a sensation unit, a water quality regulating unit for containing and releasing an agent and a control unit. The heat exchange unit has a heat exchanger, a first pump and a mating opening connected with the water quality regulating unit. The sensation unit detects the pH value of a first working liquid and transmits a sensation signal to the control unit. The control unit compares the sensation signal with a preset pH value range to generate and transmit a comparison result to an external interface, whereby the water quality regulating unit is manually controlled to release the agent or not. Alternatively, according to the comparison result, the control unit automatically controls the water quality regulating unit to release the agent or not.

A liquid-cooling heat dissipation system capable of regulating water quality includes a first liquid inlet, a first liquid outlet, a heat exchange unit, a sensation unit, a water quality regulating unit for containing and releasing an agent and a control unit. The heat exchange unit has a heat exchanger, a first pump and a mating opening connected with the water quality regulating unit. The sensation unit detects the pH value of a first working liquid and transmits a sensation signal to the control unit. The control unit compares the sensation signal with a preset pH value range to generate and transmit a comparison result to an external interface, whereby the water quality regulating unit is manually controlled to release the agent or not. Alternatively, according to the comparison result, the control unit automatically controls the water quality regulating unit to release the agent or not.

The invention relates to an anti-blocking seawater desalination device based on graphene filtering, comprising heating device, solar heat-collecting device, fresh water condensation heat-exchange device and thermal-expansion and cold-shrinkage control valve mechanism; the heating device can fully heat and distill seawater, the sprayed seawater is distilled by graphene heat-conduction layers to improve the distillation efficiency and avoiding blocking; the distilled water vapor enters into fresh water condensation heat-exchange device to exchange heat with seawater, increasing the seawater temperature, making full use of the heat in water vapor, and increasing water vapor condensation speed; the distilled concentrated seawater enters into the thermal-expansion and cold-shrinkage control valve mechanism, the flow of seawater entering into the heating device is controlled by the concentrated seawater temperature, when the temperature is too high, the flow of the seawater entering into the heating device increases, and when the temperature is too low, the flow decreases.

A system and method of controlling corrosion of a heat exchanger, having a hot gas inlet and outlet and a cold side inlet and outlet. The method includes determining a temperature of the heat exchanger at a first selected location, controlling a temperature of a corrosion sensing device to a first selected temperature based on the temperature of the surface of the heat exchanger and determining a corrosion rate associated with the heat exchanger surface at the first selected location for the first selected temperature. The method also includes comparing the corrosion rate to an expected corrosion rate, determining a cold side fluid inlet temperature target for the heat exchanger based at least in part on the comparing, the determined corrosion; and controlling a cold side fluid inlet temperature based at least in part on the determined inlet temperature target, determined corrosion rate, and expected corrosion rate.

A heat exchanger is disclosed. The heat exchanger includes a hollow tube extending from a tube inlet to a tube outlet. The hollow tube includes a wall that includes a core of a first aluminum alloy, and a cladding over the core of a second aluminum alloy. The second aluminum alloy is less noble than the first aluminum alloy and includes an alloying element selected from tin, indium, or gallium, or combinations thereof. A first fluid flow path is disposed along an inner surface of the wall from the tube inlet to the tube outlet, and a second fluid flow path is disposed across an outer surface of the wall.

A heat exchanger is disclosed. The heat exchanger includes a hollow tube including a first aluminum alloy extending along an axis from a tube inlet to tube outlet. A first plurality of fins including a second aluminum alloy extends outwardly from an outer surface of the tube. A second plurality of fins including a third aluminum alloy extends outwardly from the outer surface of the tube, interspersed along the axis with the fins including the second aluminum alloy. The third aluminum alloy is less noble than each of the first aluminum alloy and the second aluminum alloy, and includes an alloying element selected from tin, indium, gallium, or combinations thereof. A first fluid flow path is disposed through hollow tube from the tube inlet to the tube outlet. A second fluid flow path is disposed across an outer surface of the hollow tube through spaces between adjacent fins.

A tube plate of a heat exchanger includes a tube plate base material to which ends of a plurality of heat transfer tubes are fixed, a first backplate that covers a surface of the tube plate base material on a first tube chamber side, and a fastener that includes at least a shaft section and fixes the first backplate to the tube plate base material. The first backplate includes heat transfer tube insertion holes through which a plurality of heat transfer tubes are inserted, and an insertion hole through which the shaft section is loosely inserted. The first backplate is joined to an end section of a second partition wall on a first end side. The second partition wall, the first backplate, and the fastener are formed of a material having higher corrosion resistance than the tube plate base material.

Embodiments of the present disclosure relate to a fixing device for a double-sided heat sink and an associated heat dissipating system. There is exemplarily provided a fixing device for mounting the double-sided heat sink on a carrier. The fixing device comprises: a first holder including a first cylindrically-shaped rod, wherein the first cylindrically-shaped rod can pass through a first cooling portion of the double-sided heat sink and a mounting hole of the carrier to fix the first cooling portion to a first side of the carrier, and the first cylindrically-shaped rod comprises a through-hole extending along a longitudinal direction; and a second holder including a second cylindrically-shaped rod, wherein the second cylindrically-shaped rod can pass through a mounting hole of a second cooling portion of the double-sided heat sink and the through-hole of the first holder, such that the second holder is coupled with the first holder to fix the second cooling portion to a second side of the carrier opposite to the first side.