Product Details
I. Definition
Coolers are a type of heat exchange equipment used for cooling fluids. They typically use water or air as the cooling agent to dissipate heat.
Scope of Application
Suitable for various operating conditions such as coolers, condensers, heating, evaporation, and waste heat recovery.
III. Categories
Tube-in-tube cooler
Tube-in-tube coolerComposed of the outer shell and the internal cooler body. Due to varying structural designs, it is categorized into threaded pipe and flanged connections; horizontal and vertical installation types; floating disk and floating head floating types; helical tube and finned tube cooler tube structures; and various structures such as arch baffles, rectangular baffles, double weir baffles, and circular baffles, all selected based on specific conditions.
② Principle
The heat medium of the tube-type cooler enters through the inlet connections on the cylinder, sequentially flows through each baffled passage, and twists to the outlet connections. The cooler medium, however, uses a two-pass flow, where the medium enters through the inlet, passes through half of the cooler tubes after the dividing cover, and then flows into the other half of the cooler tubes through the return cover to the other side of the dividing cover and the outlet pipe. During the two-pass flow, the cold medium absorbs the excess heat released by the heat medium and discharges it through the outlet, maintaining the working medium at the rated operating temperature.
2. Plate Cooler
Plate heat exchangers are a new type of heat exchange equipment featuring high heat transfer efficiency, compact structure, small land occupation, and easy installation. They can be conveniently combined into any flow pattern to meet different process requirements, thus widely used in various industrial sectors such as oil, petrochemicals, metallurgy, machinery, light industry, food, electricity, coating, and heating. In recent years, they have also been applied in the cooling water and pure water systems of the microelectronics industry.Ultra-pure Water SystemIt is widely adopted in China as well.
Due to the refrigerant fluid (chilled water) andRecirculating Cooling Water(Working fluid) does not come into direct contact; instead, the heat from the circulating cooling water is transferred to the chilled water through heat exchange plates. At this point, the circulating cooling water, which is at a higher temperature, is cooled to become a low-temperature fluid. When the fluids on both sides of the heat exchange plates are at a constant temperature for heat transfer,
3. Air-cooled cooler
Air-cooled oil cooler (abbreviated as air cooler) is a type of cooler that uses air as the cooling source.Aluminum alloy plateWingShell and tube heat exchangers feature oil and air channels with heat exchange fins, offering a larger heat exchange area per volume and high heat transfer efficiency, using air as the medium for heat exchange. Compared to water-cooled radiators, they are not only easy to install and maintain but also prevent the mixing of oil and water caused by bursting copper pipes, which can severely damage the system. Furthermore, for equipment that requires relocation (such as construction machinery), there's no need to consider water supply, and there's no need to dismantle and rebuild a water circulation system, making them increasingly popular eco-friendly products.
Four: Installation Method
Cooling units come in various installation methods:Vertical Cold Oil CoolerAndHorizontal Oil CoolerThe vertical cooler features a small required installation area and ease of installation. The horizontal cooler boasts lower pressure drop and strong resistance to water impact. Therefore, selecting the appropriate vertical or horizontal cooler based on specific site conditions, space height, and performance requirements can better meet the needs of generators and other equipment.
CoolerPressure TestUpon qualification, the equipment may be put into use, and all internal water should be drained before operation.
(2) Check if all drain and vent valves operate smoothly and are functional, as well as the positions of the switches. Ensure that all pressure gauges and thermometers are properly installed.
(3) Inspect the foundation and supports for stability, and ensure that all bolts are fully engaged and securely tightened.
(4) When in use, first introduce cold flow, followed by hot flow.
(5) When using chilled or heated mediums, first ensure the auxiliary line is clear, then gradually open the outlet valve. After checking for any issues, open the inlet valve and do so slowly to prevent pressure build-up. Pay attention to observing changes in the equipment during the startup process. After the cooler is put into use, leaks may occur due to changes in temperature and pressure, so timely inspections should be conducted.
