The first type of hydraulic press cooler is tube type, which includes multiple types such as double tube, vertical, horizontal, floating head, etc. The characteristic of this type is that the water used for cooling flows through the inside of the pipes, while the oil flows through the intervals between the pipes. The folded plate set in the middle allows the oil to flow in a zigzag manner, and the two-way or even four-way flow method used makes its cooling effect stronger.

form

A tubular cooler consists of two main parts: an external shell and an internal cooler body. Due to different specific structural methods, external connection forms are divided into pipe thread type and flange type; Divided into horizontal and vertical installation forms; From the floating form, it can be divided into floating disc type and floating head type; The cooler tube structure can be divided into spiral tube type and finned tube type; There are various structural forms of flow deflectors, including arched flow deflectors, rectangular flow deflectors, double weir flow deflectors, and circular flow deflectors, all of which are selected according to specific conditions.

The external shell includes a cylinder, a water distribution cover, and a return water cover. It is equipped with inlet and outlet oil pipes, as well as inlet and outlet water pipes, and is equipped with oil, drainage, exhaust plugs, zinc rod installation holes, and thermometer interfaces.

The cooler body is composed of cooler tubes, fixed orifice plates, movable orifice plates, baffle plates, etc. The two ends of the cooler tube are connected to the fixed and moving hole disks, and there is oil leakage inside the cooler of the cooler loader; The fixed hole disk is connected to the outer flange, and the movable hole disk can freely expand and contract inside the outer body to eliminate the influence of temperature on the cooler tube due to thermal expansion and contraction. The baffle plays a role in enhancing heat transfer and supporting the cooler tubes.

principle

The heat medium of the tubular cooler flows from the inlet of the connecting pipe on the cylinder, sequentially through various baffle channels, and meanders to the outlet of the connecting pipe. The cooling medium adopts a dual pass flow, that is, the cooling medium enters half of the cooling pipes through the inlet and the water distribution cover, and then flows into the other half of the cooling pipes through the return cover and enters the water distribution cover and outlet pipe on the other side. In the process of dual tube flow, the cold medium absorbs the waste heat released by the heat medium and discharges it through the outlet to maintain the rated working temperature of the working medium.