Pipe-type Cool Oil Cooler Utility Model Patent∶ZL 2014 2 0456485.0

One. Usage and Features∶

（1Usage

Turbines, fans, coal mills, pumps, and marine propulsion systems in industrial and mining enterprises all require oil coolers for the lubrication of large and medium-sized machinery. Based on the advantages of similar products, our company has conducted extensive experiments on the vibration of the oil-side laminar flow in the heat exchange tubes, successfully developing a new type of tubular oil cooler.

（2Product Structure and Working Principle

The tubular cool oil cooler features a flow operation where oil flows through the shell side and water flows through the tube side. The heat transfer coefficient on the oil side outside the tube is of the same order as the heat transfer coefficient inside the tube.120-10The thermal resistance is primarily on the oil side. This equipment replaces the traditional arch baffles with swirl guides, with the main principle being that the cooling oil, after entering the cold oil cooler housing through the oil pump, is guided to rotate by the swirl guides. As it rotates, the oil also cleanses along the circumferential direction of the tubes. The structural parameters of the tubes are the result of optimized selection through multiple comparative tests, offering excellent performance and safety for use. It is an ideal auxiliary equipment for steam turbine units.

（3Product Features

Tubular cool oilers have the following advantages compared to other types of cool oilers:∶

1. High thermal efficiency is a feature of the plate-type cool oiler.2-3Multiple

2.Compact structure∶Its compactness is comparable to plate heat exchangers.1-2Multiple;

3.Low oil resistance due to the use of swirl guide vanes, with oil entering as tangential flow, which is beneficial for fluid operation.

4.Long service life, easy installation and maintenance∶The heat exchange tubes have minimal thermal expansion stress, thus avoiding common issues like cracking and leakage. Additionally, their tube-shell structure facilitates easy installation and maintenance.

Section II: Product Series Performance and Technical Specifications

Condensing Steam Turbine Air Cooled Oil Cooler Performance and Specifications

Section 3: Product Dimensions∶

Section 4: Product Selection∶

1Target Users for the Product

This product series is specifically designed for condensing steam turbines in power plants and various heating steam turbines, and can also be used for lubrication and cooling of power oils in industrial and mining enterprises, such as boiler feed pumps, coal mills, and forced-air blowers.

2Product Model Pattern....

3Selection Guidelines

Turbine models vary widely among domestic and international manufacturers. Based on extensive data collection, our company has compiled various cold oil cooler ordering and selection plans, as shown in the table. Please contact our company if you have special usage requirements. V. Installation of the cold oil cooler∶

1Preparation before installation

Coolant exchanger is pre-assembled before shipment.0.6mpaHydrostatic testing is required. However, prior to installation, the provisions of the "Technical Code for Construction and Acceptance of Electric Power Projects (Turbine Generator Part)" should be followed.∶“Cooling oil side should be at working pressure1.5Triple the hydrostatic test pressure retention5No leakage for minutes.

2Coolant Cooler Installation∶

（1The cooler support is mounted on a pre-prepared bracket and can reliably meet its dynamic and static load requirements.

（2Due to the change from an arch-shaped baffle to a swirl guide, the cold oil cooler's oil inlet direction is clockwise; do not install it backwards.