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.
II. Applicability Scope
Suitable for various operations such as cooler, condensation, heating, evaporation, and waste heat recovery.
III. Categories
Shell and Tube Cooler
Tubular coolerComposed of the external shell and the internal cooler body. Due to variations in specific structural designs, they are categorized by external connection type into threaded pipe and flanged; by installation type into horizontal and vertical; by floating type into floating disk and floating head; by cooler tube structure into helical tube and finned tube; and by baffle structure into arch baffles, rectangular baffles, double weir baffles, and circular baffles, among other configurations, all selected based on specific conditions.
② Principle
The heat medium of the tube-type cooler enters through the header on the cylinder, sequentially passing through each bend passage, and twists to the header outlet. The cooling medium utilizes a double-pass flow, where the cooling medium enters half of the cooler tubes via the inlet, then flows back through the return cover into the other half of the cooler tubes, entering the other side of the water-distributing cover and the outlet pipe. During the double-pass flow of the cold medium, it 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-style Cooler
Plate coolers are a new type of heat exchange equipment featuring high thermal efficiency, compact structure, small footprint, and easy installation. They can be conveniently combined into any flow form to meet different process requirements, hence their widespread application in various industrial fields such as petrochemicals, metallurgy, machinery, light industry, food, electricity, painting, heating, and recently, in the cooling water and pure water systems of the microelectronics industry.Ultra-pure Water SystemIt is also widely adopted in China.
Due to the refrigerant fluid (cold medium) andRecirculating Cooling Water(Working fluid) does not come into direct contact; they transfer heat from the circulating cooling water to the chilled water through heat exchange plates. At this point, the circulating cooling water, which has a higher temperature, is cooled down 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 (also known as an air cooler) is a type of cooler that uses air as its cooling source.Aluminum alloy plateWingShell and tube heat exchangers feature oil and air channels with heat transfer fins, resulting in a larger heat exchange surface area per volume and high thermal efficiency, with air as the medium for heat exchange. Compared to water-cooled radiators, they offer not only simple installation and maintenance but also prevent the mixing of oil and water caused by burst copper tubes, thereby avoiding severe damage to the system. Moreover, for equipment that needs to change working locations (such as construction machinery), there's no need to consider water supply, and there are no issues with disassembling and rebuilding water circulation systems, making them increasingly popular eco-friendly products.
IV. Installation Method
Cooling unit installation methods are categorized as:Vertical Cold Oil CoolerAndHorizontal Cold Oil CoolerVertical coolers feature a small required installation area and easy installation. Horizontal cool oilers have characteristics such as lower pressure drop and strong resistance to water impact. Therefore, selecting the appropriate vertical or horizontal cool oiler based on different site conditions, space heights, and performance requirements can better meet the needs of generators and other equipment.
CoolerPressure TestUpon qualification, use the equipment and completely drain the internal water from the front.
(2) Check if all drain and vent valves are operational and if the switches are in the correct positions. Ensure that the pressure gauges and thermometers are fully installed.
(3) Inspect the base and supports for stability, and ensure all bolts are fully and securely tightened.
(4) When in use, first introduce cold flow, followed by hot flow.
(5) When using cold or hot media, first ensure the auxiliary line is clear, then slowly open the outlet valve. After checking for any issues, open the inlet valve and make sure to open it slowly to prevent pressure buildup. Pay attention to any changes in the equipment during the startup process. After the cooler is in use, leaks may occur as the temperature and pressure change, so inspections should be conducted promptly.
