Tubular Cold Oil Cooler Utility Model Patent∶ZL 2014 2 0456485.0
One. 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 machinery. Building upon the strengths 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 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 traditional arch baffles with swirl guide vanes. The main principle is that the cooling oil, after passing through the oil pump, enters the shell of the cooler and is guided by the swirl guide vanes to rotate and move forward. As it rotates, the oil also washes along the circumferential direction of the tubes. The structural parameters of the tubes are the result of optimal selection through multiple comparative tests, demonstrating excellent performance and reliability in use. It is an ideal auxiliary equipment for steam turbine units.
（3Product Features
Tube-type oil cooler has the following advantages compared to other types of oil coolers:∶
1. High heat transfer efficiency is a key feature of the plate-type cool oil cooler.2-3Multiple
2.Tightly structured∶Its compactness is suitable for plate heat exchangers.1-2Multiple；
3.Low oil resistance due to the use of swirl guide vanes, with the oil entering in a tangential flow, which is favorable 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 Turbine Cold Oil Cooler Performance and Specifications
Section 3: Product Dimensions∶
Section 4: Product Selection∶
1Target Product Users
This product series is specifically designed for condensing steam turbines in thermal 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 fans for exhaust and intake.
2Product Model Patterns....
3Selection Guidelines
A wide variety of turbine types are designed by domestic and international turbine manufacturers. Based on extensive data collection, our company has compiled various ordering and selection schemes for turbine oil coolers, as shown in the table. If customers have special usage requirements, please contact our company. V. Installation of the oil cooler∶
1Preparation before installation
Coolant exchanger pre-delivery0.6mpaHydrostatic test required. However, prior to installation, the provisions of the "Technical Specifications for Construction and Acceptance of Electric Power Projects (Turbine Generator Set Part)" should be followed.∶“Cold ink side should be at working pressure1.5Twice the hydrostatic test pressure, maintained.5Zero leakage for minutes.
2Coolant Cooler Installation∶
（1The cooler is supported on pre-prepared brackets 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 direction is clockwise. Do not install it in reverse.
