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 conditions such as coolers, condensation, heating, evaporation, and waste heat recovery.
Section 3: Categories
Tubular cooler
Shell and Tube CoolerComposed of the external shell and the internal cooler body. Due to varying structural designs, they are categorized by external connection types into threaded pipe and flanged; by installation types into horizontal and vertical; by floating types into floating disc and floating head; by tube structure into helical tube and finned tube; and by baffle design into arch baffles, rectangular baffles, double-ridge baffles, and circular baffles, among others, all selected based on specific conditions.
② Principle
The heat medium of the tube-type cooler enters through the headers on the cylinder, sequentially passing through each baffle channel and winding to the headers at the outlet. The cooling medium flows in a two-pass pattern, where it enters half of the cooler tubes via the water inlet and baffle cover, then returns through the return water cover to the other half of the cooler tubes, entering the other side baffle cover and outlet pipe. During the two-pass flow of the cold medium, it absorbs the excess heat released by the heat medium and discharges it through the outlet, maintaining the rated working temperature of the working medium.
2. Plate Cooler
Plate-type coolers are a new type of heat exchange equipment with high heat transfer efficiency, compact structure, small land occupation, and easy installation. They can be conveniently combined into any flow form according to different process requirements. Therefore, they are widely used in various industrial fields such as petrochemical, chemical, metallurgy, machinery, light industry, food, power, coating, and heating. In recent years, they have been applied in the cooling water and pure water systems of the microelectronics industry.Ultra-pure Water SystemAlso widely adopted in China.
Due to the refrigerant fluid (cryogenic 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 (also known as an air cooler) is a type of cooler that uses air as its cooling medium.Aluminum alloy plateWingShell-and-tube heat exchangers, characterized by having both oil and air channels equipped with heat exchange fins within the core body, offer a larger heat exchange area per volume, resulting in high heat transfer efficiency, and perform heat exchange using air as the medium. 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 burst copper pipes, which can cause severe damage to the system. Furthermore, for equipment that requires relocation (such as construction machinery), they eliminate the need to consider water supply, and there is no need for disassembly and reconstruction of the water circulation system, making them increasingly popular eco-friendly products.
IV. Installation Method
Cooling units come in various installation methods:Vertical Cold Oil CoolerAndHorizontal Cold Oil CoolerThe vertical cooler features a compact installation area and ease of installation. The horizontal cooler offers lower pressure drop and strong resistance to water impact. Therefore, selecting the appropriate vertical or horizontal cooler based on different site conditions, space heights, and performance requirements can better meet the needs of power generation sets and other equipment.
CoolerPressure TestUpon qualification, the equipment can be put into use, and the front tank should be fully drained.
(2) Check if all drain and vent valves operate smoothly and are functional, as well as the positions of the switches. Verify that the pressure gauge and thermometer are all properly installed.
(3) Inspect the foundation and support for stability, and ensure all bolts are fully engaged and securely tightened.
(4) When in use, first introduce cold flow, followed by hot flow.
(5) When using cold or hot mediums, ensure the auxiliary line is clear first, then gradually open the outlet valve. After confirming there are no issues, open the inlet valve slowly to prevent pressure build-up. Monitor the equipment for any changes during the startup process. After the cooler is in use, leaks may occur due to changes in temperature and pressure, and should be checked promptly.
