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How is cooling carried out in plate heat exchanger manufacturing?


Release date:

26-04-22

Plate heat exchangers feature a large heat-transfer surface area, a compact structure, and outstanding performance. In general, they are well suited for cooling low-viscosity, relatively clean oils and have already earned widespread recognition across many industries. So how exactly does this type of cooler operate? The following provides a detailed explanation. A plate heat exchanger is a type of shell-and-tube heat exchanger and is a commonly used oil-cooling device in power systems. It enables heat exchange between two liquid media with a temperature difference, thereby reducing oil temperature—particularly effective for turbine oil cooling—and ensuring the reliable operation of equipment such as steam turbines.

How is cooling carried out in plate heat exchanger manufacturing?

  Plate heat exchangers offer a large heat-transfer surface area, a compact structure, and outstanding performance. In general, they are well suited for cooling low-viscosity, relatively clean oils and have already earned widespread recognition across many industries. So how exactly does this type of cooler work? Below is a detailed explanation. A plate heat exchanger is a type of shell-and-tube heat exchanger and is a commonly used oil-cooling device in power systems. It enables heat exchange between two liquid media with a temperature difference, thereby reducing oil temperature—particularly effective for turbine oil cooling—and ensuring the reliable operation of equipment such as steam turbines.

  The lubrication system is a critical component of the steam turbine unit. As the oil circulates, it absorbs heat generated by friction in bearings and other components, causing its temperature to rise continuously. To ensure the safe and reliable operation of the unit, the oil temperature must be maintained within specified limits—typically not exceeding 60–65°C and not falling below 35–40°C. Excessively high temperatures can lead to overheating and damage of bearing components, while also shortening the service life of the lubricant. Conversely, excessively low temperatures increase the oil’s viscosity, raising frictional losses and potentially inducing machine vibration. Therefore, plate-type coolers (oil coolers) are employed to reduce the lubricant temperature by regulating the flow rate of the cooling water.

  The heat transfer tubes of the plate cooler are made from red copper tubing with rolled‑on finned surfaces, providing a large heat exchange area while keeping the unit compact and lightweight. This plate cooler is well suited for cooling low‑viscosity, relatively clean hydraulic fluids. It finds applications in industries such as plastics machinery, hydraulic equipment, air compressors, dilute‑oil lubrication systems, fluid couplings, and power‑generation equipment. The product line offers models ranging from small to medium and large sizes, all customizable to meet specific customer requirements, ensuring broad coverage.

  Plate heat exchangers can effectively maintain the temperature within a specified range, ensuring that the generator set remains unaffected.

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