Types and characteristics of coolers

type

characteristic

cooling effect

Water-cooler

Column tube type: fixed folded plate type, floating head type, double tube type, U-shaped tube type, vertical type, horizontal type, etc.

Cooling water flows through the tubes and oil flows between the tubes. The middle folding plate deflects the oil, and adopts a two-way or four-way flow method to enhance the cooling effect.

Good heat dissipation effect, the heat dissipation coefficient can reach 350～580W/(m2·℃)

Corrugated plate type: herringbone corrugated type, oblique corrugated type, etc.

The contact points formed by the superposition and arrangement of the plate-shaped herringbone or oblique corrugated structure make the liquid flow form turbulent flow when the flow rate is not high, and improve the heat dissipation effect

Good heat dissipation effect, the heat dissipation coefficient can reach 230～815W/(m2·℃)

Air-cooler

Air-cooled: indirect, fixed and floating or supported and suspended, etc.

Use air to cool the oil, such a cooler is simple in structure, small in size, light in weight, small in thermal resistance, large in heat exchange area, easy to use and install

Good heat dissipation effect, the heat dissipation coefficient can reach116～175W/（m2·℃）

Refrigerated cooler

Mechanical refrigeration type: box type, cabinet type

Use Freon refrigeration principle to absorb and discharge heat in hydraulic oil

Good cooling effect, convenient cooling temperature control