Pipe-type Oil Cooler Utility Model Patent∶ZL 2014 2 0456485.0
Please provide the Chinese content to be translated.. Application and Features∶
（1Usage
Turbines, fans, coal millers, pumps, and marine propulsion systems in industrial and mining enterprises all require oil coolers for the lubrication of large and medium-sized mechanical equipment. Based on the advantages of similar products, our company has conducted extensive experiments on the vibration of the oil-side laminar flow of the heat exchange tubes, successfully developing a new type of tubular oil cooler.
（2Product Structure and Working Principle
The tubular oil cooler operates with the oil flowing through the shell side and water through the tube side. The heat transfer coefficient on the oil side outside the tube is that of the inside tube side heat transfer coefficient.120-10The thermal resistance is primarily on the oil side. This equipment replaces the traditional bow-shaped baffle with a swirl guide plate. The main principle is that the cooled oil, after being pumped into the shell of the cooler, follows the guidance of the swirl guide plate and rotates forward. The oil is brushed along the circumference of the tube while rotating. The structural parameters of the tube are the result of optimal selection through multiple comparative tests, offering excellent performance, safety, and reliability. It is an ideal auxiliary equipment for steam turbine units.
（3Product Features
Tubular oil coolers offer the following advantages compared to other types of oil coolers:∶
1. High thermal efficiency is a feature of the plate-type cool oil cooler.2-3Multiple
2.Tightly structured∶Its compactness is comparable to plate heat exchangers.1-2Multiple;
3.Low oil resistance due to the use of swirl baffles, with oil entering in a 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 & Technical Specifications
Condensing Steam Turbine Cold Oil Cooler Performance and Specifications
Section 3: Product Dimensions∶
4. Product Selection∶
1Target Product Users
This product series is specifically designed for condensing steam turbines in power plants and various heating steam turbines, and can also be used for the lubrication and cooling of power oils in industrial and mining enterprises, such as boiler feed pumps, coal mills, and forced-air blowers.
2Product Model Patterns....
3Selection Guidelines
A wide variety of turbine models are designed by domestic and international turbine manufacturers. Based on extensive data collection, our company has compiled a range of cold oil cooler ordering and selection schemes. As shown in the table. Please contact our company for any special usage requirements. V. Installation of Cold Oil Coolers∶
1Preparation before installation
Chilled oil cooler is pre-assembled before shipment0.6mpaHydrostatic testing is required. However, prior to installation, the provisions of the "Technical Specifications for Construction and Acceptance of Electric Power Projects (Turbine Generator Set Volume)" should be followed.∶“Cold ink side should be working pressure1.5Twice the hydrostatic test pressure retention5No leakage for minutes.
2Coolant Separator 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 plate for the support, the cold oil cooler's oil inlet should be in the clockwise direction; do not install it backward.
