Product Details

I. Definition

Coolers are a type of heat exchange equipment used for cooling fluids. They typically use water or air as a coolant to dissipate heat. They can mainly be divided intoTube-in-tube cooler、Plate CoolerJapanese Style Air-Cooled Chiller. The chiller isMetallurgy、Chemical Industry、EnergyTransportation, light industry, food, etc.Industrial SectorWidely adoptedHeat Exchanger Device

II. Applicable Scope

Suitable for various conditions such as coolers, condensation, heating, evaporation, and waste heat recovery.

III. Categories

Tube-type cooler

This hydraulic cooler comes in various types, including double-tube, vertical, horizontal, and floating head designs. The feature of this type is that the cooling water flows through the tube interior, while the oil passes through the gaps between the tubes. The intermediate baffle allows the oil to deflect, and its double or even quadruple flow pattern enhances its cooling efficiency significantly.

Tubular coolerComposed of the external shell and internal cooler body. Due to varying structural designs, it is categorized into threaded pipe connection and flange connection externally; horizontal and vertical installation forms; floating disc and floating head floating types; spiral tube and fin tube cooler tube structures; and a variety of structural forms such as bow-shaped baffle plates, rectangular baffle plates, double weir baffle plates, and circular baffle plates, all selected based on specific conditions.

The external shell includes: the cylinder, water-dividing cover, and backwater cover. It is equipped with oil inlet and outlet pipes, as well as water inlet and outlet pipes. It also features drain plug for oil and water, exhaust plug, zinc rod mounting holes connected to a thermometer interface, and more.

Cooler body consists of cooler tubes, fixed hole plates, moving hole plates, baffle plates, etc. The ends of the cooler tubes are connected to the fixed and moving hole plates. There is oil leakage inside the cooler of the cooler loader; fixed hole plate and outer body.Flange connectionThe dynamic hole disk can freely expand and contract within the outer body to eliminate the impact of temperature on the cooler tubes due to thermal expansion and contraction. The baffle serves to enhance heat transfer and support the cooler tubes.

Principle

The heat medium of the tubular cooler enters through the headers on the cylinder, sequentially passes through each bend channel, and曲折ly flows to the header outlet. The cooling medium utilizes a two-pass flow, where the cooling medium enters through the inlet, goes through half of the cooler tubes via the dividing cover, and then flows back into the other half of the cooler tubes through the return water cover, entering another side dividing cover and outlet pipe. During the two-pass flow process, the cold medium 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

This panel type is available in V-groove and diagonal wave patterns, utilizing ripple-structured contact points to create turbulence at relatively low flow rates, significantly enhancing the heat dissipation efficiency.

Plate Heat ExchangerIt is a new type of heat exchange equipment, featuring high heat transfer efficiency, compact structure, small land occupation, and easy installation. It can be conveniently combined into any flow form according to different process requirements. Therefore, it is widely used in various industrial fields such as petrochemical, chemical, metallurgy, machinery, light industry, food, electricity, coating, and heating. In recent years, it has been applied 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 (cryogenic water) 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 with higher temperature is cooled down to become low-temperature fluid. When the fluids on both sides of the heat exchange plates are at a constant temperature for heat transfer,

It includes three processes:

1) The heat transfer process by convection, where the working fluid (recirculating cooling water) transfers heat to the wall of the heat exchanger during its flow.

2) Heat transfer process through the heat exchange plate

3) Heat is transferred to the refrigerant fluid (chilled water) by convection through the heat exchange sheet wall on the other side.

Air-cooled cooler

The third type of air-cooled cooler also comes in various versions such as indirect, fixed, and suspended, etc. It boasts numerous features as well, including its simple structure, compact size and weight, and ease of use, all of which are its strengths [3].

Air-cooled oil cooler (shortened to air cooler) is a type of cooler that uses air as its cooling source.Aluminum alloy plateFinned heat exchangers feature oil and air channels with heat exchange fins in the core body, offering a larger heat exchange area per volume and high thermal efficiency, with 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 burst copper pipes, which can severely damage the system. Additionally, for equipment that requires relocation (such as construction machinery), they eliminate the need to consider water supply, and there's no need for disassembly and reconstruction of water circulation systems, making them increasingly popular eco-friendly products.

Installation Method

Cooling system installation methods include:Vertical Cool Oil CoolerAndHorizontal Oil CoolerVertical coolers feature compact installation area and easy installation. Horizontal coolers have lower pressure drop and strong resistance to water impact. Therefore, selecting the appropriate vertical or horizontal cooler based on different 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 the front end should be fully drained of internal water.

(2) Check the operation and flexibility of all drain and vent valves, as well as the switch positions. Ensure that all pressure gauges and thermometers are properly installed.

(3) Inspect the foundation and support for stability, and ensure all bolts are fully engaged and tightened.

(4) When in use, first introduce cold flow, followed by hot flow.

(5) When using chilled 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 do so slowly to prevent pressure build-up. Pay attention to the equipment's changes during the operation. After the cooler is in use, leakage may occur due to changes in temperature and pressure, so it should be checked promptly.