Applications of solar preheating system for oil storage and transportation with thermal softened water

JIAO Hanbing1, ZHOU Jianqiu2, DENG Kunjun2, ZHANG Dapeng2, YE Zhixiong3

(1.Process Group of Anqing Petrochemical Storage Department, Sinopec Group, Anqing 246000, China;

2.College of Mechanical and Power Engineering, Nanjing University of Technology, Nanjing 210009, China;

3.Department of Mechanical Engineering, Wuhan Institute of Technology, Wuhan 430074, China)

Abstract: Aiming at keeping the flowability of crude oil transmission and avoiding wax precipitating, traditional energy can be replaced by solar energy to heat industrial boiler, which could provide the preheating softened water to industrial boiler and reduce the energy consumption and environmental pollution. The solar preheating system for oil storage and transportation with thermal softened water was proposed, which mainly applied to industry with limited space, high calorific value, high energy consumption and high pollution. The definite performance of the system was designed to renovate industrial boiler with the combination of solar collector and heat storage equipment to offer the preheating softened water. The latent heat storage theory was used to satisfy outlet water temperature reaching the industry requirement, and keep boiler solar collector running completely and continuously. On the basis of theoretical research, many experiments were done to test the reliability of the preheating system. The results indicate that the preheating system is of high heat colleting efficiency and the latent heat storage device is of great heat storage and rejecting in sunny day, which could persist heating more than 5~7 hours to supply the boiled water for industrial requirement.

Key words: solar power; preheating system; latent heat storage device; energy conservation and environment protection